CN105949343B - A kind of preparation method of the synthetic method of aldehydedodextrans, the method for coating based on the aldehydedodextrans and microsphere composition - Google Patents

A kind of preparation method of the synthetic method of aldehydedodextrans, the method for coating based on the aldehydedodextrans and microsphere composition Download PDF

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CN105949343B
CN105949343B CN201610289196.XA CN201610289196A CN105949343B CN 105949343 B CN105949343 B CN 105949343B CN 201610289196 A CN201610289196 A CN 201610289196A CN 105949343 B CN105949343 B CN 105949343B
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包德泉
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Chengdu Aixing Biotechnology Co Ltd
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Abstract

The present invention relates to the preparation method of a kind of synthetic method of aldehydedodextrans, the method for coating based on the aldehydedodextrans and microsphere composition.The hydroformylation glucan is using halo acetal and glucan as raw material, is substituted, hydrolysis forms, and the aldehyde radical of generation is not susceptible to cross-linking reaction, and active group aldehyde radical density is controllable, favorable reproducibility, is more beneficial for the connection of monoclonal antibody, albumen.The method for coating is using epoxy ethyl particulate as initiation material, instead of traditional carboxyl particulate.Amination can be replaced sugared with organic molecule, whole coating process seems that simple, cycle is short, preferably to be used for industrialized production.The preparation method of the microsphere composition, the hydroformylation glucan is coated on microsphere surface and forms covalent coupling of the aldehydedodextrans microballoon for biomolecule, this method technique is simple, easy to operate, reproducible.

Description

A kind of synthetic method of aldehydedodextrans, the coating side based on the aldehydedodextrans The preparation method of method and microsphere composition
Technical field
The invention belongs to the field of chemical synthesis, and in particular to a kind of synthetic method of aldehydedodextrans, based on the aldehyde radical The method for coating of glucan and the preparation method of microsphere composition.
Background technology
Polystyrene microsphere has been widely used in medical diagnostic field, and its cardinal principle is that protein can be by a variety of sides Formula is covalently bonded to microsphere surface.Microsphere surface can modify the group of the functionalization such as epoxy radicals, chloromethyl, aldehyde radical, carboxyl, all It can be reacted with the amino at the Fc ends of antibody, form covalent bond.When covalent cross-linking mode is selected, generally require to examine Consider effect phase, complex process degree and the last charge stable situation of crosslinking.First three group can directly with albumen amino Reaction, covalent bond is formed, use more convenient, but storage stability is slightly worse than carboxyl microballoon.And carboxyl microballoon then need through Cross after EDC/NHS activation, just the amino with albumen reacts, and forms covalent bond, this method is relatively stable, and is current The labeling method of in the market main flow.
But there is also defect for this method:
1, using carboxyl particulate as raw material, activate to form amino particulate by adding EDC/NHS, then with the amino in albumen Reacted.The reaction compared to the reaction of aldehyde radical one-step method is more easy to that particulate occurs because adding essential activation process Union phenomenon, condition are difficult to control.
2, because microsphere surface is in addition to carboxyl, remaining is all the hydrophobic surface of naked leakage, and these hydrophobic surfaces are in egg In vain with nonspecific absorption easily occurs in the cohesive process of microballoon, and it is easier by solvent, pH even salinity Influence, so as to interference detection results.
The content of the invention
In order to solve above mentioned problem existing for prior art, the invention provides a kind of synthetic method of aldehydedodextrans, The preparation method of method for coating and microsphere composition based on the aldehydedodextrans.The present invention proposes a kind of brand-new aldehyde radical The synthetic method of glucan, and be coated on microsphere surface and form the covalent idol that aldehydedodextrans microballoon is used for biomolecule Connection, this method technique are simple, easy to operate, reproducible.
The technical solution adopted in the present invention is:
A kind of synthetic method of aldehydedodextrans,
The novel synthesis circuit of aldehydedodextrans can represent as follows:
Comprise the following steps:
A, after glucan being dissolved in into water, under inert gas shielding, EDTA, 1, 4-benzenediol, sodium borohydride, NaOH are added And toluene, it is stirred at reflux 1-3 hours;
B, bromo- 1, the 1- diethoxyethane solution of 2- is added dropwise into system, time for adding is no less than 1 hour;It is added dropwise to complete Afterwards, 12-18 hours are stirred at reflux;
C, the organic phase in system is washed with water, obtains the aqueous solution, the aqueous solution is added in methanol, obtains hydroformylation sugar Precursor precipitation;
D, it is hydroformylation sugar precursor precipitation is soluble in water, add toluenesulfonic acid and adjust pH to 1-2, after heating hydrolysis, use NaOH solution is adjusted to neutrality, and aldehydedodextrans are obtained in the form of precipitation.
By above-mentioned steps, it can synthesize that purity is good, the aldehydedodextrans of high income.
Preferably, a kind of synthetic method of aldehydedodextrans, comprises the following steps:
A, after the glucan of 20000-40000 parts by weight being dissolved in the water of 50-130 parts by volume, under nitrogen protection, add The 1, 4-benzenediol of EDTA, 5-15 parts by weight of 5-15 parts by weight, the sodium borohydride of 5-15 parts by weight, 4000-8000 parts by weight NaOH and 40-80 parts by volume toluene, be stirred at reflux 1-3 hours;
B, the toluene solution of bromo- 1, the 1- diethoxyethane of 2- is added dropwise into system, time for adding is no less than 1 hour, 2- The volume ratio of bromo- 1,1- diethoxyethane and toluene is 1:4-5;After being added dropwise to complete, 12-18 hours are stirred at reflux;
C, after being cooled to room temperature, the organic phase in system is washed with water three times, the volume of water used is 120-180 every time Parts by volume, merge aqueous phase and obtain the aqueous solution, the aqueous solution is added in the methanol of 1500-2500 parts by volume, and ethanol is used after suction filtration Three times, the volume of ethanol used is 200-280 parts by volume every time for washing, and washed precipitation is dried in vacuo, and obtains hydroformylation Sugar precursor precipitates;
D, the hydroformylation sugar precursor precipitation of 5000-15000 parts by weight is dissolved in the water of 30-70 parts by volume, adds first Benzene sulfonic acid adjusts pH to 1-2, is heated to 70-90 DEG C and is hydrolyzed, and after hydrolyzing 1-3 hours, use quality fraction is 30-50%'s NaOH solution is adjusted to neutrality, and after filtering, removal of impurities, aldehydedodextrans are obtained in the form of precipitation.
Present invention also offers a kind of method for coating based on the aldehydedodextrans synthetic method,
The coating circuit signal of aldehydedodextrans can represent as follows, and wherein microballoon is represented with ball:
Comprise the following steps:
A, microballoon is added in 1,6- hexamethylene diamine solution, reacts 8-16 hours, obtain ammonification microballoon;
B, the aldehydedodextrans are dissolved in phosphate buffer, add the ammonification microballoon, dripped after well mixed Add three hydrogen boron sodium cyanide solutions, react 8-16 hours;
C, eccentric cleaning, obtain being coated with the microballoon of aldehydedodextrans.
Preferably, a kind of method for coating based on the aldehydedodextrans synthetic method, comprises the following steps:
A, at 70 DEG C, the mass fraction that the epoxy ethyl microballoon of 500-1500 parts by weight is added to 10-30 parts by volume is In 10% 1,6- hexamethylene diamine solution, at 90 DEG C after stirring reaction 8-16 hours, removed not through dialysis or hollow fiber conduit cleaning The small molecule of reaction, obtain ammonification microballoon;
B, the aldehydedodextrans of 2000-3000 parts by weight are dissolved in the phosphate buffer of 40-60 parts by volume, The concentration of the phosphate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, adds the ammonification microballoon, Three hydrogen boron sodium cyanide solutions are added dropwise after well mixed, the three hydrogen boron sodium cyanide solution is three hydrogen boron Cymags of 400 parts by weight It is dissolved in the 0.1mol/L phosphate buffers of 2.5 parts by volume and obtains, 8-16 hours is reacted at 37 DEG C;
C, eccentric cleaning removes unreacted small molecule, obtains being coated with the microballoon of aldehydedodextrans.
The synthetic method and method for coating of the aldehydedodextrans have following advantages:
1st, the hydroformylation glucan is using halo acetal and glucan as raw material, is substituted, hydrolysis forms, generation Aldehyde radical is not susceptible to cross-linking reaction, and active group aldehyde radical density is controllable, favorable reproducibility, is more beneficial for the connection of monoclonal antibody, albumen.
2nd, the method for coating is using epoxy ethyl particulate as initiation material, instead of traditional carboxyl particulate.Can be with organic Small molecule replaces amination sugar, and whole coating process seems that simple, cycle is short, preferably to be used for industrialized production.
Present invention also offers a kind of preparation method of the microsphere composition based on the method for coating, including following step Suddenly:
A, prepared by oxygen microballoon:Thioxene, β-two butanone and rare earth compounding are put into microballoon, formed by oxygen Microballoon;
B, the preparation of microballoon is supplied oxygen:Sensitising agent is put into microballoon, forms oxygen supply microballoon;
C, aldehydedodextrans coating microballoon:It will be added by oxygen microballoon or oxygen supply microballoon in 1,6- hexamethylene diamine solution, and react 8- 16 hours, obtain ammonification microballoon;The aldehydedodextrans are dissolved in phosphate buffer, add the ammonification microballoon, are mixed Three hydrogen boron sodium cyanide solutions are added dropwise after closing uniformly, react 8-16 hours;Eccentric cleaning, obtain being coated with aldehydedodextrans by oxygen Microballoon or oxygen supply microballoon;
D, it is described to be combined as microsphere composition by oxygen microballoon and oxygen supply microballoon.
Preferably, a kind of preparation method of microsphere composition, comprises the following steps:
A, prepared by oxygen microballoon:Thioxene, β-two butanone and rare earth compounding are put into microballoon, formed by oxygen Microballoon;
B, the preparation of microballoon is supplied oxygen:Sensitising agent is put into microballoon, forms oxygen supply microballoon;
C, aldehydedodextrans coating microballoon:At 70 DEG C, 500-1500 parts by weight are added by oxygen microballoon or oxygen supply microballoon The mass fraction of 10-30 parts by volume is in 10% 1,6- hexamethylene diamine solution, at 90 DEG C after stirring reaction 8-16 hours, through dialysis Or hollow fiber conduit cleaning removes unreacted small molecule, obtains ammonification microballoon;By the aldehyde radical Portugal of 2000-3000 parts by weight Glycan is dissolved in the phosphate buffer of 40-60 parts by volume, and the concentration of the phosphate buffer is 0.1mol/L, the phosphorus The pH=6.0 of phthalate buffer, the ammonification microballoon is added, three hydrogen boron sodium cyanide solutions, three hydrogen is added dropwise after well mixed Boron sodium cyanide solution is dissolved in the 0.1mol/L phosphate buffers of 2.5 parts by volume for three hydrogen boron Cymags of 400 parts by weight to be obtained Arrive, 8-16 hours are reacted at 37 DEG C;Eccentric cleaning removes unreacted small molecule, obtains being coated with the micro- by oxygen of aldehydedodextrans Ball or oxygen supply microballoon;
D, it is described to be combined as microsphere composition by oxygen microballoon and oxygen supply microballoon.
Preferably, the rare earth compounding is europium complex or terbium coordination compound;The sensitising agent is that photooxidation dye substance is sub- Methyl blue, rose-red, one kind or combination in phthalocyanine compound and chlorophyll A.Because the europium complex and terbium coordination compound Property is close, can meet the needs of the present invention.
Preferably, the synthetic method of the europium complex, comprises the following steps:
A, adjacent phenyl biphenyl is dissolved in dichloromethane, is added aluminium chloride, is cooled to 0 DEG C;Chloroacetic chloride is added dropwise, is added dropwise 1-2 hours are reacted at room temperature afterwards, are dried to obtain solids I;
B, the solids I is dissolved in absolute ether, adds sodium methoxide and Trifluoroacetic Acid Ethyl Ester, react at room temperature 2-3 Hour, it is dried to obtain solids II;
C, six trichloride hydrate europiums are well mixed with the solids II, add absolute ethyl alcohol dissolving, stirring adds ammonia After reacting at room temperature 1-2 hours, water is added into system to pH to 7-9 for water, is filtered, is dried to obtain solids III;
D, take 4,7- diphenyl -1,10- phenanthroline to dissolve by heating and recrystallization crystal is collected after ethanol, cooling;Take described Recrystallize crystal and 4,7- diphenyl -1,10- phenanthroline are added in toluene, stir 1-2 hours, be cooled to room temperature, except toluene, obtain To europium complex.
Further, the synthetic method of the europium complex, comprises the following steps
A, the adjacent phenyl biphenyl of 4500-5000 parts by weight is dissolved in the anhydrous methylene chloride of 30-50 parts by volume, added The aluminium chloride of 5500-6000 parts by weight, it is cooled to 0 DEG C;The chloroacetic chloride of 3500-4500 parts by weight is added dropwise, rear room temperature is added dropwise 1-2 hours are reacted, after the organic phase in system is washed with water three times, 5000-6000 weight is obtained with anhydrous sodium sulfate drying Part solids I;
B, take the solids I of 3000-3500 parts by weight to be dissolved in the absolute ether of 30-50 parts by volume, add The sodium methoxide of 1500-2500 parts by weight and the Trifluoroacetic Acid Ethyl Ester of 3000-5000 parts by weight, 2-3 hours are reacted at room temperature, by system In organic phase be washed with water three times after, obtain the solids II of 1000-2000 parts by weight with anhydrous sodium sulfate drying;
C, six trichloride hydrate europiums of 2800-3200 parts by weight and the solids II of 6000-6800 parts by weight are mixed The absolute ethyl alcohol dissolving for uniformly adding 30-50 parts by volume is closed, stirring adds the ammoniacal liquor of 1500-2500 parts by volume to pH to 7-9, After room temperature reaction 1 hour, the water of 600-1000 parts by volume is added into system, precipitation is collected by filtration, and precipitation is dried to obtain Solids III;
D, 4,7- diphenyl -1,10- phenanthroline of 3000-5000 parts by weight is taken to dissolve by heating in 100-150 parts by volume Ethanol, recrystallization crystal is collected after cooling;Take the recrystallization crystal and 800-1200 parts by weight of 2500-3500 parts by weight 4,7- diphenyl -1,10- phenanthroline are added in the toluene of 200-400 parts by volume, and 1-2 hours are stirred at 62 DEG C, are cooled to room temperature, Except toluene, europium complex is obtained.
Preferably, the synthetic method of thioxene and β-two butanone, comprises the following steps:
A, bromoaniline is dissolved in DMF, adds bromotetradecane and diisopropylethylamine, 100 DEG C of reaction 10-14 are small Shi Hou, dichloromethane is added into reaction solution, recrystallize to obtain N, the dibasic para-bromoaniline of N-;
B, the N, the dibasic para-bromoaniline of N-, magnesium rod and iodine are dissolved in wiring solution-forming in THF, maintain the reflux for condition Under, solution is added drop-wise in THF, back flow reaction 1 hour after liquid feeding, 0 DEG C is cooled to, benzoyl hydroperoxide is added into system And THF, 2-3 hours are reacted at room temperature;After hydrochloric acid is added into system to hydrolyze the salt of generation, dichloromethane is added into system Alkane, dry and chromatograph isolated intermediate;
C, the intermediate is dissolved in toluene solution, adds zinc chloride and 2 mercapto ethanol, back flow reaction 3-5 are small When, except toluene chromatographs to obtain thioxene and β-two butanone.
Further, the synthetic method of thioxene and β-two butanone, comprises the following steps:
A, the bromoaniline of 30000-40000 parts by weight is dissolved in the DMF of 100-150 parts by volume, adds 120000- The bromotetradecane of 200000 parts by weight and the diisopropylethylamine of 50000-100000 parts by weight, after 100 DEG C are reacted 12 hours, The dichloromethane of 200-400 parts by volume is added into reaction solution, after system is washed with water three times, ethyl alcohol recrystallization is added, obtains The dibasic para-bromoaniline of N, N-;
B, the N, the dibasic para-bromoaniline of N-, the magnesium rod of 2500-3500 parts by weight and iodine are dissolved in 40-60 volumes Wiring solution-forming in the THF of part, and solution is added drop-wise in the THF of 80-120 parts by volume and maintained the reflux for, flowed back after liquid feeding anti- It should react 1 hour, be cooled to 0 DEG C, the benzoyl hydroperoxide and 40-60 parts by volume of 10000-15000 parts by weight are added into system THF, at room temperature react 2-3 hours;Into system add molar concentration be 0.1mol/L hydrochloric acid to hydrolyze the salt of generation after, to The dichloromethane of 150-250 parts by volume is added in system, after the organic phase in system is washed with water three times, uses anhydrous sodium sulfate Dry, column chromatography for separation obtains intermediate;
C, the intermediate is dissolved in the toluene solution of 80-120 parts by volume, adds zinc chloride and 7000-10000 weights The 2 mercapto ethanol of part is measured, back flow reaction 3-5 hours, except toluene, column chromatography obtains thioxene and β-two butanone.
On the english abbreviation and the Name Resolution of other materials occurred in the present invention:
DMF:Dimethyl fumarate, No. CAS:68-12-2;
THF;Tetrahydrofuran, No. CAS:109-99-9;
DPP:4,7- diphenyl -1,10- phenanthroline, No. CAS:1662-01-7;
EDTA:Ethylenediamine tetra-acetic acid, No. CAS:60-00-4;
1, 4-benzenediol, No. CAS:123-31-9;
Sodium borohydride, No. CAS:16940-66-2;
Bromo- 1, the 1- diethoxyethane of 2-, chemical formula:C6H13BrO2, No. CAS:2032-35-1;
Toluenesulfonic acid, No. CAS:98-11-3;
1,6- hexamethylene diamine, No. CAS:124-09-4;
Three hydrogen boron Cymags, also known as sodium cyanoborohydride, No. CAS:25895-60-7;
2,5 thioxenes, No. CAS:638-02-8;
Adjacent phenyl biphenyl, C12H10, No. CAS:92-52-4;
Chloroacetic chloride, No. CAS:75-36-5;
Trifluoroacetic Acid Ethyl Ester;No. CAS:383-63-1;
To amino bromination benzene, No. CAS:106-40-1;
Bromotetradecane, No. CAS:112-71-0;
Diisopropylethylamine, No. CAS:7087-68-5;
In the present invention, water used is deionized water.
It should be noted that parts by weight and parts by volume in the present invention, it is intended merely to show the proportionate relationship of each material, and Some quantitative value is not represented specifically, and in the present invention, the parts by weight and parts by volume have following corresponding relation:When 1 parts by weight are During 1g, 1 parts by volume is 1L.
Beneficial effects of the present invention are:
1st, the hydroformylation glucan is using halo acetal and glucan as raw material, is substituted, hydrolysis forms, generation Aldehyde radical is not susceptible to cross-linking reaction, and active group aldehyde radical density is controllable, favorable reproducibility, is more beneficial for the connection of monoclonal antibody, albumen.
2nd, the method for coating is using epoxy ethyl particulate as initiation material, instead of traditional carboxyl particulate.Can be with organic Small molecule replaces amination sugar, and whole coating process seems that simple, cycle is short, preferably to be used for industrialized production.
3rd, the preparation method of the microsphere composition, the hydroformylation glucan is coated on microsphere surface formation aldehyde radical Portugal and gathered Sugared microballoon is used for the covalent coupling of biomolecule, and this method technique is simple, easy to operate, reproducible.
Embodiment
In the present invention, if not refering in particular to, all parts, percentage are unit of weight, and all equipment and raw material etc. are equal It is commercially available or the industry is conventional.Method in following embodiments, it is the routine of this area unless otherwise instructed Method.
The invention provides a kind of synthetic method of aldehydedodextrans, the method for coating based on the aldehydedodextrans With the preparation method of microsphere composition.
With reference to embodiment, present disclosure is further illustrated.It should be appreciated that the implementation of the present invention is not limited to In the following examples, any formal accommodation and/or change made to the present invention fall within the scope of the present invention.
Embodiment 1
A kind of synthetic method of aldehydedodextrans, comprises the following steps:
A, after 30g glucans being dissolved in into 90ml water, under nitrogen protection, 10mg EDTA, 10mg1,4- benzene two are added Phenol, 10mg sodium borohydrides, 6g NaOH and 60ml toluene, are stirred at reflux 2 hours;
B, the toluene solution of bromo- 1, the 1- diethoxyethane of 2- is slowly added dropwise into system, time for adding is small no less than 1 When, the toluene solution of bromo- 1, the 1- diethoxyethane of 2- is dissolved in 200ml toluene for bromo- 1, the 1- diethoxyethane of 50ml2- It is made in solution;After being added dropwise to complete, it is stirred at reflux 15 hours;
C, after being cooled to room temperature, the organic phase in system is washed with water three times, the volume of water used is 150ml every time, Merge aqueous phase and obtain the aqueous solution, the aqueous solution is added in 2000ml methanol, washed three times with ethanol after suction filtration, used every time The volume of ethanol is 240ml, and washed precipitation is dried in vacuo, and obtains 33g hydroformylations sugar precursor precipitation;
D, hydroformylation sugar precursor precipitation described in 10g is dissolved in 50ml water, adds toluenesulfonic acid and adjust pH to 1-2, be heated to 80 DEG C it is hydrolyzed, after hydrolysis 2 hours, the NaOH solution that use quality fraction is 40% is adjusted to neutrality, and filtering, dialysis or centrifugation are clear Small molecular weight impurity is removed in washout, freezes to obtain aldehydedodextrans freeze-dried powder 9g.
Embodiment 2
A kind of synthetic method of aldehydedodextrans, comprises the following steps:
A, after 20g glucans being dissolved in into 130ml water, under nitrogen protection, 5mg EDTA, 15mg1,4- benzene two are added Phenol, 5mg sodium borohydrides, 8g NaOH and 40ml toluene, are stirred at reflux 3 hours;
B, the toluene solution of bromo- 1, the 1- diethoxyethane of 2- is slowly added dropwise into system, time for adding is small no less than 1 When, the toluene solution of bromo- 1, the 1- diethoxyethane of 2- is dissolved in 200ml toluene for bromo- 1, the 1- diethoxyethane of 40ml2- It is made in solution;After being added dropwise to complete, it is stirred at reflux 12 hours;
C, after being cooled to room temperature, the organic phase in system is washed with water three times, the volume of water used is 180ml every time, Merge aqueous phase and obtain the aqueous solution, the aqueous solution is added in 1500ml methanol, washed three times with ethanol after suction filtration, each institute It is 280ml with the volume of ethanol, and washed precipitation is dried in vacuo, obtains 22g hydroformylations sugar precursor precipitation;
D, hydroformylation sugar precursor precipitation described in 5g is dissolved in 70ml water, adds toluenesulfonic acid and adjust pH to 1-2, be heated to 70 DEG C It is hydrolyzed, after hydrolyzing 3 hours, the NaOH solution that use quality fraction is 30% is adjusted to neutrality, filtering, dialysis or eccentric cleaning Small molecular weight impurity is removed, freezes to obtain aldehydedodextrans freeze-dried powder 4.5g.
Embodiment 3
A kind of synthetic method of aldehydedodextrans, comprises the following steps:
A, after 40g glucans being dissolved in into 50ml water, under nitrogen protection, addition 15mg EDTA, 5mg1,4- benzenediols, 15mg sodium borohydrides, 4g NaOH and 80ml toluene, are stirred at reflux 1 hour;
B, the toluene solution of bromo- 1, the 1- diethoxyethane of 2- is slowly added dropwise into system, time for adding is small no less than 1 When, the toluene solution of bromo- 1, the 1- diethoxyethane of 2- is dissolved in 200ml toluene for bromo- 1, the 1- diethoxyethane of 45ml2- It is made in solution;After being added dropwise to complete, it is stirred at reflux 18 hours;
C, after being cooled to room temperature, the organic phase in system is washed with water three times, the volume of water used is 120ml every time, Merge aqueous phase and obtain the aqueous solution, the aqueous solution is added in 2500ml methanol, washed three times with ethanol after suction filtration, used every time The volume of ethanol is 200ml, and washed precipitation is dried in vacuo, and obtains 44g hydroformylations sugar precursor precipitation;
D, hydroformylation sugar precursor precipitation described in 15g is dissolved in 30ml water, adds toluenesulfonic acid and adjust pH to 1-2, be heated to 90 DEG C it is hydrolyzed, after hydrolysis 1 hour, the NaOH solution that use quality fraction is 50% is adjusted to neutrality, and filtering, dialysis or centrifugation are clear Small molecular weight impurity is removed in washout, freezes to obtain aldehydedodextrans freeze-dried powder 13.5g.
Embodiment 4
A kind of method for coating based on aldehydedodextrans described in embodiment 1, comprises the following steps:
A, at 70 DEG C, 1g epoxy ethyls microballoon (being purchased from U.S. Bangs Laboratories, INC) is added into 20ml mass Fraction is in 10% 1,6- hexamethylene diamine solution, and stirring reaction is removed after 12 hours through dialysis or hollow fiber conduit cleaning at 90 DEG C Unreacted small molecule is gone, obtains ammonification microballoon;
B, the aldehydedodextrans freeze-dried powder in 2.5g embodiments 1 is taken to be dissolved in 50ml phosphate buffers, it is described The concentration of phosphate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, adds the ammonification microballoon, mixing Three hydrogen boron sodium cyanide solutions are slowly added dropwise after uniformly, the three hydrogen boron sodium cyanide solution is that the hydrogen boron Cymags of 0.4g tri- are dissolved in Obtain in 2.5ml 0.1mol/L phosphate buffers, reacted 12 hours at 37 DEG C;
C, eccentric cleaning removes unreacted small molecule and constant volume is into 50ml, obtains 0.9g and is coated with the micro- of aldehydedodextrans Ball.
Embodiment 5
A kind of method for coating based on aldehydedodextrans described in embodiment 2, comprises the following steps:
A, at 70 DEG C, 15g epoxy ethyls microballoon (being purchased from U.S. Bangs Laboratories, INC) is added into 10ml matter Measure in 1, the 6- hexamethylene diamine solution that fraction is 10%, stirring reaction is cleaned after 16 hours through dialysis or hollow fiber conduit at 90 DEG C Unreacted small molecule is removed, obtains ammonification microballoon;
B, the aldehydedodextrans freeze-dried powder in 2g embodiments 2 is taken to be dissolved in 60ml phosphate buffers, the phosphorus The concentration of phthalate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, adds the ammonification microballoon, and mixing is equal Three hydrogen boron sodium cyanide solutions are slowly added dropwise after even, the three hydrogen boron sodium cyanide solution is that the hydrogen boron Cymags of 0.4g tri- are dissolved in 2.5ml 0.1mol/L phosphate buffers in obtain, reacted 8 hours at 37 DEG C;
C, eccentric cleaning removes unreacted small molecule and constant volume is into 50ml, obtains 1.35g and is coated with aldehydedodextrans Microballoon.
Embodiment 6
A kind of method for coating based on aldehydedodextrans described in embodiment 3, comprises the following steps:
A, at 70 DEG C, 0.5g epoxy ethyls microballoon (being purchased from U.S. Bangs Laboratories, INC) is added into 30ml matter Measure in 1, the 6- hexamethylene diamine solution that fraction is 10%, stirring reaction is removed after 8 hours through dialysis or hollow fiber conduit cleaning at 90 DEG C Unreacted small molecule is gone, obtains ammonification microballoon;
B, the aldehydedodextrans freeze-dried powder in 3g embodiments 3 is taken to be dissolved in 40ml phosphate buffers, the phosphorus The concentration of phthalate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, adds the ammonification microballoon, and mixing is equal Three hydrogen boron sodium cyanide solutions are slowly added dropwise after even, the three hydrogen boron sodium cyanide solution is that the hydrogen boron Cymags of 0.4g tri- are dissolved in 2.5ml 0.1mol/L phosphate buffers in obtain, reacted 16 hours at 37 DEG C;
C, eccentric cleaning removes unreacted small molecule and constant volume is into 50ml, obtains 0.45g and is coated with aldehydedodextrans Microballoon.
Embodiment 7
A kind of preparation method of microsphere composition, comprises the following steps:
A, prepared by oxygen microballoon:With the method in Patent No. US 5780646 embodiment by 200mg dimethyl Thiophene, β-two butanone and 100mg rare earth compoundings are put into microballoon (being purchased from U.S. Bangs Laboratories, INC), are formed By oxygen microballoon;The rare earth compounding is europium complex;
B, the preparation of microballoon is supplied oxygen:With the method in Patent No. US 5780646 embodiment, by 200mg sensitising agents It is put into microballoon, forms oxygen supply microballoon;The sensitising agent is the releasable singlet according to disclosed in United States Patent (USP) US 5709994 The chlorophyll A of oxygen;
C, aldehydedodextrans coating microballoon:At 70 DEG C, by the 1g quality point that 20ml is added by oxygen microballoon or oxygen supply microballoon Number is in 10% 1,6- hexamethylene diamine solution, stirring reaction removes through dialysis or hollow fiber conduit cleaning at 90 DEG C after 12 hours Unreacted small molecule, obtain ammonification microballoon;Aldehydedodextrans in 2.5g embodiments 1 are dissolved in 50ml phosphate-buffered In liquid, the concentration of the phosphate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, adds the ammonification Microballoon, is added dropwise three hydrogen boron sodium cyanide solutions after well mixed, the three hydrogen boron sodium cyanide solution is 0.4g three hydrogen boron Cymags It is dissolved in 2.5ml 0.1mol/L phosphate buffers and obtains, is reacted 12 hours at 37 DEG C;Eccentric cleaning removes unreacted small Molecule and constant volume into 50ml, obtain being coated with aldehydedodextrans by oxygen microballoon or oxygen supply microballoon;
D, it is described to be combined as microsphere composition by oxygen microballoon and oxygen supply microballoon.
Embodiment 8
A kind of preparation method of microsphere composition, comprises the following steps:
A, prepared by oxygen microballoon:With the method in Patent No. US 5780646 embodiment by 200mg dimethyl Thiophene, β-two butanone and 100mg rare earth compoundings are put into microballoon (being purchased from U.S. Bangs Laboratories, INC), are formed By oxygen microballoon;The rare earth compounding is europium complex;
B, the preparation of microballoon is supplied oxygen:With the method in Patent No. US 5780646 embodiment, by 200mg sensitising agents It is put into microballoon, forms oxygen supply microballoon;The sensitising agent is the photooxidation dye substance according to disclosed in United States Patent (USP) US 5709994 Methylene blue;
C, aldehydedodextrans coating microballoon:At 70 DEG C, by the 0.5g quality that 30ml is added by oxygen microballoon or oxygen supply microballoon Fraction is in 10% 1,6- hexamethylene diamine solution, and stirring reaction removes after 8 hours through dialysis or hollow fiber conduit cleaning at 90 DEG C Unreacted small molecule, obtain ammonification microballoon;Aldehydedodextrans in 3g embodiments 2 are dissolved in 40ml phosphate buffer In, the concentration of the phosphate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, it is micro- to add the ammonification Ball, is added dropwise three hydrogen boron sodium cyanide solutions after well mixed, the three hydrogen boron sodium cyanide solution is that 0.4g three hydrogen boron Cymags are molten Obtain in 2.5ml 0.1mol/L phosphate buffers, reacted 16 hours at 37 DEG C;Eccentric cleaning removes unreacted small point Son and constant volume is into 50ml, obtain being coated with aldehydedodextrans by oxygen microballoon or oxygen supply microballoon;
D, it is described to be combined as microsphere composition by oxygen microballoon and oxygen supply microballoon.
Embodiment 9
A kind of preparation method of microsphere composition, comprises the following steps:
A, prepared by oxygen microballoon:With the method in Patent No. US 5780646 embodiment by 200mg dimethyl Thiophene, β-two butanone and 100mg rare earth compoundings are put into microballoon (being purchased from U.S. Bangs Laboratories, INC), are formed By oxygen microballoon;The rare earth compounding is terbium coordination compound;
B, the preparation of microballoon is supplied oxygen:With the method in Patent No. US 5780646 embodiment, by 200mg sensitising agents It is put into microballoon, forms oxygen supply microballoon;The sensitising agent is the photooxidation dye substance according to disclosed in United States Patent (USP) US 5709994 Rose-red;
C, aldehydedodextrans coating microballoon:At 70 DEG C, by the 1.5g quality that 10ml is added by oxygen microballoon or oxygen supply microballoon Fraction is in 10% 1,6- hexamethylene diamine solution, and stirring reaction is removed after 16 hours through dialysis or hollow fiber conduit cleaning at 90 DEG C Unreacted small molecule is gone, obtains ammonification microballoon;Aldehydedodextrans in 2g embodiments 3 are dissolved in 60ml phosphate-buffered In liquid, the concentration of the phosphate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, adds the ammonification Microballoon, is added dropwise three hydrogen boron sodium cyanide solutions after well mixed, the three hydrogen boron sodium cyanide solution is 0.4g three hydrogen boron Cymags It is dissolved in 2.5ml 0.1mol/L phosphate buffers and obtains, is reacted 8 hours at 37 DEG C;Eccentric cleaning removes unreacted small Molecule and constant volume into 50ml, obtain being coated with aldehydedodextrans by oxygen microballoon or oxygen supply microballoon;
D, it is described to be combined as microsphere composition by oxygen microballoon and oxygen supply microballoon.
Embodiment 10
A kind of preparation method of microsphere composition, comprises the following steps:
A, the synthetic method of europium complex:4.8g adjacent phenyl biphenyl is dissolved in 40ml anhydrous methylene chloride, added Enter 5.88g aluminium chloride, be cooled to 0 DEG C;4g chloroacetic chloride is added dropwise, is reacted at room temperature 1.5 hours after being added dropwise, by system After organic phase is washed with water three times, 5.2g solids I is obtained with anhydrous sodium sulfate drying;Solids I described in 3.2g is taken to be dissolved in In 40ml absolute ether, 2g sodium methoxides and 4g Trifluoroacetic Acid Ethyl Esters are added, is reacted at room temperature 2.5 hours, will be organic in system After being mutually washed with water three times, 1.6g solids II is obtained with anhydrous sodium sulfate drying;By the trichloride hydrate europiums of 2.932g six with Solids II described in 6.39g is well mixed, adds the dissolving of 40ml absolute ethyl alcohols, and stirring adds 2ml ammoniacal liquor to pH to 8, and room temperature is anti- After answering 1 hour, 800ml water is added into system, precipitation is collected by filtration, and precipitation is dried to obtain 9g solids III;Take 4.0g 4,7- diphenyl -1,10- phenanthroline (DPP) are dissolved by heating in 120ml ethanol, and recrystallization crystal is collected after cooling;Take 3.014g The recrystallization crystal and 0.997g 4,7- diphenyl -1,10- phenanthroline are added in 300ml toluene, and it is small that 1.5 are stirred at 62 DEG C When, room temperature is cooled to, except toluene, obtains europium complex.
B, the synthetic method of thioxene and β-two butanone:34.4g bromoanilines are dissolved in 125ml DMF, added Enter 0.6mol bromotetradecanes and 0.6mol diisopropylethylamine, after 100 DEG C are reacted 12 hours, 300ml is added into reaction solution Dichloromethane, after system is washed with water three times, add ethyl alcohol recrystallization, obtain N, the dibasic para-bromoaniline of N-;By described in The dibasic para-bromoaniline of N, N-, 3g magnesium rods and iodine are dissolved in wiring solution-forming in 50ml THF, under the conditions of maintaining the reflux for, by solution It is added drop-wise in 100ml THF, back flow reaction 1 hour after liquid feeding, is cooled to 0 DEG C, 0.1mol peroxide benzene is added into system Formic acid and 50ml THF, react 2.5 hours at room temperature;It is 0.1mol/L hydrochloric acid to hydrolyze that molar concentration is slowly added into system After the salt of generation, 200ml dichloromethane is added into system, after the organic phase in system is washed with water three times, with anhydrous sulphur Sour sodium is dried, and column chromatography for separation obtains intermediate;The intermediate is dissolved in 100ml toluene solution, adds zinc chloride With 0.11mol 2 mercapto ethanols, back flow reaction 4 hours, Rotary Evaporators remove toluene, column chromatography obtain thioxene and β-two butanone.
C, prepared by oxygen microballoon:With the method in Patent No. US 5780646 embodiment by described in 200mg two Methylthiophene, β-two butanone and europium complex described in 100mg are put into microballoon (being purchased from U.S. Bangs Laboratories, INC) In, formed by oxygen microballoon;
D, the preparation of microballoon is supplied oxygen:With the method in Patent No. US 5780646 embodiment, by 200mg sensitising agents It is put into microballoon, forms oxygen supply microballoon;The sensitising agent is the releasable singlet according to disclosed in United States Patent (USP) US 5709994 The chlorophyll A of oxygen;
E, aldehydedodextrans coating microballoon:At 70 DEG C, by the 1g quality point that 20ml is added by oxygen microballoon or oxygen supply microballoon Number is in 10% 1,6- hexamethylene diamine solution, stirring reaction removes through dialysis or hollow fiber conduit cleaning at 90 DEG C after 12 hours Unreacted small molecule, obtain ammonification microballoon;Aldehydedodextrans in 2.5g embodiments 1 are dissolved in 50ml phosphate-buffered In liquid, the concentration of the phosphate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, adds the ammonification Microballoon, is added dropwise three hydrogen boron sodium cyanide solutions after well mixed, the three hydrogen boron sodium cyanide solution is 0.4g three hydrogen boron Cymags It is dissolved in 2.5ml 0.1mol/L phosphate buffers and obtains, is reacted 12 hours at 37 DEG C;Eccentric cleaning removes unreacted small Molecule and constant volume into 50ml, obtain being coated with aldehydedodextrans by oxygen microballoon or oxygen supply microballoon;
F, it is described to be combined as microsphere composition by oxygen microballoon and oxygen supply microballoon.
Embodiment 11
A kind of preparation method of microsphere composition, comprises the following steps:
C, the synthetic method of europium complex:4.5g adjacent phenyl biphenyl is dissolved in 50ml anhydrous methylene chloride, added Enter 5.50g aluminium chloride, be cooled to 0 DEG C;4.5g chloroacetic chloride is added dropwise, is reacted at room temperature 1 hour after being added dropwise, by system After organic phase is washed with water three times, 5.0g solids I is obtained with anhydrous sodium sulfate drying;Solids I described in 3.5g is taken to be dissolved in In 30ml absolute ether, 2.5g sodium methoxides and 3g Trifluoroacetic Acid Ethyl Esters are added, is reacted at room temperature 3 hours, will be organic in system After being mutually washed with water three times, 2.0g solids II is obtained with anhydrous sodium sulfate drying;By the trichloride hydrate europiums of 2.800g six with Solids II described in 6.00g is well mixed, adds the dissolving of 50ml absolute ethyl alcohols, and stirring adds 1.5ml ammoniacal liquor to pH to 7, room temperature After reaction 1 hour, 1000ml water is added into system, precipitation is collected by filtration, and precipitation is dried to obtain 10g solids III;Take 3.0g 4,7- diphenyl -1,10- phenanthroline (DPP) are dissolved by heating in 150ml ethanol, and recrystallization crystal is collected after cooling;Take Crystal and 1.200g 4 are recrystallized described in 2.500g, 7- diphenyl -1,10- phenanthroline is added in 200ml toluene, stirred at 62 DEG C 2 hours, room temperature is cooled to, except toluene, obtains europium complex.
D, the synthetic method of thioxene and β-two butanone:30.0g bromoanilines are dissolved in 150ml DMF, added Enter 0.45mol bromotetradecanes and 0.8mol diisopropylethylamine, after 100 DEG C are reacted 12 hours, 200ml is added into reaction solution Dichloromethane, after system is washed with water three times, add ethyl alcohol recrystallization, obtain N, the dibasic para-bromoaniline of N-;By described in The dibasic para-bromoaniline of N, N-, 3.5g magnesium rods and iodine are dissolved in wiring solution-forming in 40ml THF, will be molten under the conditions of maintaining the reflux for Drop is added in 120ml THF, back flow reaction 1 hour after liquid feeding, is cooled to 0 DEG C, and 0.8mol peroxides are added into system Benzoic acid and 60ml THF, react 2 hours at room temperature;It is 0.1mol/L hydrochloric acid to hydrolyze that molar concentration is slowly added into system After the salt of generation, 250ml dichloromethane is added into system, after the organic phase in system is washed with water three times, with anhydrous sulphur Sour sodium is dried, and column chromatography for separation obtains intermediate;The intermediate is dissolved in 80ml toluene solution, add zinc chloride and 0.13mol 2 mercapto ethanols, back flow reaction 3 hours, Rotary Evaporators remove toluene, column chromatography obtain thioxene and β- Two butanone.
C, prepared by oxygen microballoon:With the method in Patent No. US 5780646 embodiment by 200mg dimethyl Thiophene, β-two butanone and europium complex described in 100mg are put into microballoon (being purchased from U.S. Bangs Laboratories, INC), shape Into by oxygen microballoon;
D, the preparation of microballoon is supplied oxygen:With the method in Patent No. US 5780646 embodiment, by 200mg sensitising agents It is put into microballoon, forms oxygen supply microballoon;The sensitising agent is the photooxidation dye substance according to disclosed in United States Patent (USP) US 5709994 Methylene blue;
E, aldehydedodextrans coating microballoon:At 70 DEG C, by the 0.5g quality that 30ml is added by oxygen microballoon or oxygen supply microballoon Fraction is in 10% 1,6- hexamethylene diamine solution, and stirring reaction removes after 8 hours through dialysis or hollow fiber conduit cleaning at 90 DEG C Unreacted small molecule, obtain ammonification microballoon;Aldehydedodextrans in 3g embodiments 2 are dissolved in 40ml phosphate buffer In, the concentration of the phosphate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, it is micro- to add the ammonification Ball, is added dropwise three hydrogen boron sodium cyanide solutions after well mixed, the three hydrogen boron sodium cyanide solution is that 0.4g three hydrogen boron Cymags are molten Obtain in 2.5ml 0.1mol/L phosphate buffers, reacted 16 hours at 37 DEG C;Eccentric cleaning removes unreacted small point Son and constant volume is into 50ml, obtain being coated with aldehydedodextrans by oxygen microballoon or oxygen supply microballoon;
F, it is described to be combined as microsphere composition by oxygen microballoon and oxygen supply microballoon.
Embodiment 12
A kind of preparation method of microsphere composition, comprises the following steps:
E, the synthetic method of europium complex:5.0g adjacent phenyl biphenyl is dissolved in 30ml anhydrous methylene chloride, added Enter 6.00g aluminium chloride, be cooled to 0 DEG C;3.5g chloroacetic chloride is added dropwise, is reacted at room temperature 2 hours after being added dropwise, by system After organic phase is washed with water three times, 6.0g solids I is obtained with anhydrous sodium sulfate drying;Solids I described in 3.0g is taken to be dissolved in In 50ml absolute ether, 1.5g sodium methoxides and 5g Trifluoroacetic Acid Ethyl Esters are added, is reacted at room temperature 2 hours, will be organic in system After being mutually washed with water three times, 1.0g solids II is obtained with anhydrous sodium sulfate drying;By the trichloride hydrate europiums of 3.200g six with Solids II described in 6.80g is well mixed, adds the dissolving of 30ml absolute ethyl alcohols, and stirring adds 2.5ml ammoniacal liquor to pH to 9, room temperature After reaction 1 hour, 600ml water is added into system, precipitation is collected by filtration, and precipitation is dried to obtain 11g solids III;Take 5.0g 4,7- diphenyl -1,10- phenanthroline (DPP) are dissolved by heating in 100ml ethanol, and recrystallization crystal is collected after cooling;Take Crystal and 0.800g 4 are recrystallized described in 3.500g, 7- diphenyl -1,10- phenanthroline is added in 400ml toluene, stirred at 62 DEG C 1 hour, room temperature is cooled to, except toluene, obtains europium complex.
F, the synthetic method of thioxene and β-two butanone:40.0g bromoanilines are dissolved in 100ml DMF, added Enter 0.8mol bromotetradecanes and 0.45mol diisopropylethylamine, after 100 DEG C are reacted 12 hours, 400ml is added into reaction solution Dichloromethane, after system is washed with water three times, add ethyl alcohol recrystallization, obtain N, the dibasic para-bromoaniline of N-;By described in The dibasic para-bromoaniline of N, N-, 2.5g magnesium rods and iodine are dissolved in wiring solution-forming in 60ml THF, will be molten under the conditions of maintaining the reflux for Drop is added in 80ml THF, back flow reaction 1 hour after liquid feeding, is cooled to 0 DEG C, and 0.12mol peroxides are added into system Benzoic acid and 40ml THF, react 3 hours at room temperature;It is 0.1mol/L hydrochloric acid to hydrolyze that molar concentration is slowly added into system After the salt of generation, 150ml dichloromethane is added into system, after the organic phase in system is washed with water three times, with anhydrous sulphur Sour sodium is dried, and column chromatography for separation obtains intermediate;The intermediate is dissolved in 120ml toluene solution, adds zinc chloride With 0.09mol 2 mercapto ethanols, back flow reaction 5 hours, Rotary Evaporators remove toluene, column chromatography obtain thioxene and β-two butanone.
C, prepared by oxygen microballoon:With the method in Patent No. US 5780646 embodiment by 200mg dimethyl Thiophene, β-two butanone and europium complex described in 100mg are put into microballoon (being purchased from U.S. Bangs Laboratories, INC), shape Into by oxygen microballoon;
D, the preparation of microballoon is supplied oxygen:With the method in Patent No. US 5780646 embodiment, by 200mg sensitising agents It is put into microballoon, forms oxygen supply microballoon;The sensitising agent is the photooxidation dye substance according to disclosed in United States Patent (USP) US 5709994 Phthalocyanine compound;
E, aldehydedodextrans coating microballoon:At 70 DEG C, by the 1.5g quality that 10ml is added by oxygen microballoon or oxygen supply microballoon Fraction is in 10% 1,6- hexamethylene diamine solution, and stirring reaction is removed after 16 hours through dialysis or hollow fiber conduit cleaning at 90 DEG C Unreacted small molecule is gone, obtains ammonification microballoon;Aldehydedodextrans in 2g embodiments 3 are dissolved in 60ml phosphate-buffered In liquid, the concentration of the phosphate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, adds the ammonification Microballoon, is added dropwise three hydrogen boron sodium cyanide solutions after well mixed, the three hydrogen boron sodium cyanide solution is 0.4g three hydrogen boron Cymags It is dissolved in 2.5ml 0.1mol/L phosphate buffers and obtains, is reacted 8 hours at 37 DEG C;Eccentric cleaning removes unreacted small Molecule and constant volume into 50ml, obtain being coated with aldehydedodextrans by oxygen microballoon or oxygen supply microballoon;
F, it is described to be combined as microsphere composition by oxygen microballoon and oxygen supply microballoon.
It should be noted last that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although ginseng The present invention is described in detail according to preferred embodiment, should be understood that the specific implementation that the foregoing is only the present invention Mode, the protection domain being not intended to limit the present invention, within the spirit and principles of the invention, that is done any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (10)

1. a kind of synthetic method of aldehydedodextrans, it is characterised in that comprise the following steps:
A, after glucan being dissolved in into water, under inert gas shielding, EDTA, 1, 4-benzenediol, sodium borohydride, NaOH and first are added Benzene, it is stirred at reflux 1-3 hours;
B, bromo- 1, the 1- diethoxyethane solution of 2- is added dropwise into system, time for adding is no less than 1 hour;After being added dropwise to complete, stir Mix backflow 12-18 hours;
C, the organic phase in system is washed with water, obtains the aqueous solution, the aqueous solution is added in methanol, obtains hydroformylation sugar precursor Precipitation;
D, it is hydroformylation sugar precursor precipitation is soluble in water, add toluenesulfonic acid and adjust pH to 1-2, after heating hydrolysis, use NaOH Solution is adjusted to neutrality, and aldehydedodextrans are obtained in the form of precipitation.
2. the synthetic method of aldehydedodextrans according to claim 1, it is characterised in that comprise the following steps:
A, after the glucan of 20000-40000 parts by weight being dissolved in the water of 50-130 parts by volume, under nitrogen protection, 5-15 is added The 1, 4-benzenediols of EDTA, 5-15 parts by weight of parts by weight, the sodium borohydride of 5-15 parts by weight, 4000-8000 parts by weight The toluene of NaOH and 40-80 parts by volume, it is stirred at reflux 1-3 hours;
B, the toluene solution of bromo- 1, the 1- diethoxyethane of 2- is added dropwise into system, time for adding is no less than 1 hour, 2- bromo- 1, The volume ratio of 1- diethoxyethane and toluene is 1:4-5;After being added dropwise to complete, 12-18 hours are stirred at reflux;
C, after being cooled to room temperature, the organic phase in system is washed with water three times, the volume of water used is 120-180 volumes every time Part, merge aqueous phase and obtain the aqueous solution, the aqueous solution is added in the methanol of 1500-2500 parts by volume, washed after suction filtration with ethanol Three times, the volume of ethanol used is 200-280 parts by volume every time, and washed precipitation is dried in vacuo, before obtaining hydroformylation sugar Body precipitates;
D, the hydroformylation sugar precursor precipitation of 5000-15000 parts by weight is dissolved in the water of 30-70 parts by volume, adds toluene sulphur Acid adjusts pH to 1-2, is heated to 70-90 DEG C and is hydrolyzed, and after hydrolyzing 1-3 hours, use quality fraction is that 30-50% NaOH is molten Liquid is adjusted to neutrality, and after filtering, removal of impurities, aldehydedodextrans are obtained in the form of precipitation;
In methods described, parts by weight/parts by volume is:g/L.
A kind of 3. method for coating for the aldehydedodextrans that synthetic method of claim 1 or 2 obtains, it is characterised in that Comprise the following steps:
A, microballoon is added in 1,6- hexamethylene diamine solution, reacts 8-16 hours, obtain ammonification microballoon;
B, the aldehydedodextrans are dissolved in phosphate buffer, add the ammonification microballoon, three are added dropwise after well mixed Hydrogen boron sodium cyanide solution, react 8-16 hours;
C, eccentric cleaning, obtain being coated with the microballoon of aldehydedodextrans.
4. method for coating according to claim 3, it is characterised in that comprise the following steps:
A, it is 10% by the mass fraction that the epoxy ethyl microballoon of 500-1500 parts by weight adds 10-30 parts by volume at 70 DEG C In 1,6- hexamethylene diamine solution, at 90 DEG C after stirring reaction 8-16 hours, removed through dialysis or hollow fiber conduit cleaning unreacted Small molecule, obtain ammonification microballoon;
B, the aldehydedodextrans of 2000-3000 parts by weight are dissolved in the phosphate buffer of 40-60 parts by volume, it is described The concentration of phosphate buffer is 0.1mol/L, the pH=6.0 of the phosphate buffer, adds the ammonification microballoon, mixing Three hydrogen boron sodium cyanide solutions are added dropwise after uniformly, the three hydrogen boron sodium cyanide solution is dissolved in for three hydrogen boron Cymags of 400 parts by weight Obtained in the 0.1mol/L phosphate buffers of 2.5 parts by volume, 8-16 hours are reacted at 37 DEG C;
C, eccentric cleaning removes unreacted small molecule, obtains being coated with the microballoon of aldehydedodextrans;
In methods described, parts by weight/parts by volume is:g/L.
5. a kind of usage right requires the method that the aldehydedodextrans that 1 or 2 synthetic methods obtain prepare microsphere composition, its It is characterised by, comprises the following steps:
A, prepared by oxygen microballoon:Thioxene, β-two butanone and rare earth compounding are put into microballoon, formed micro- by oxygen Ball;
B, the preparation of microballoon is supplied oxygen:Sensitising agent is put into microballoon, forms oxygen supply microballoon;
C, aldehydedodextrans coating microballoon:It will be added by oxygen microballoon or oxygen supply microballoon in 1,6- hexamethylene diamine solution, reaction 8-16 is small When, obtain ammonification microballoon;The aldehydedodextrans are dissolved in phosphate buffer, add the ammonification microballoon, mixing is equal Three hydrogen boron sodium cyanide solutions are added dropwise after even, react 8-16 hours;Eccentric cleaning, obtain being coated with aldehydedodextrans by oxygen microballoon Or oxygen supply microballoon;
D, it is described to be combined as microsphere composition by oxygen microballoon and oxygen supply microballoon.
6. the preparation method of microsphere composition according to claim 5, it is characterised in that comprise the following steps:
A, prepared by oxygen microballoon:Thioxene, β-two butanone and rare earth compounding are put into microballoon, formed micro- by oxygen Ball;
B, the preparation of microballoon is supplied oxygen:Sensitising agent is put into microballoon, forms oxygen supply microballoon;
C, aldehydedodextrans coating microballoon:At 70 DEG C, 500-1500 parts by weight are added into 10-30 by oxygen microballoon or oxygen supply microballoon The mass fraction of parts by volume be 10% 1,6- hexamethylene diamine solution in, at 90 DEG C after stirring reaction 8-16 hours, through dialysis or in The cleaning of hollow fiber pipe removes unreacted small molecule, obtains ammonification microballoon;By the aldehydedodextrans of 2000-3000 parts by weight It is dissolved in the phosphate buffer of 40-60 parts by volume, the concentration of the phosphate buffer is 0.1mol/L, the phosphate The pH=6.0 of buffer solution, the ammonification microballoon is added, three hydrogen boron sodium cyanide solutions, the three hydrogen boron cyanogen is added dropwise after well mixed Change sodium solution is dissolved in the 0.1mol/L phosphate buffers of 2.5 parts by volume for three hydrogen boron Cymags of 400 parts by weight to be obtained, and 37 8-16 hours are reacted at DEG C;Eccentric cleaning removes unreacted small molecule, obtain being coated with aldehydedodextrans by oxygen microballoon or Supply oxygen microballoon;
D, it is described to be combined as microsphere composition by oxygen microballoon and oxygen supply microballoon;
In methods described, parts by weight/parts by volume is:g/L.
7. the preparation method of the microsphere composition according to claim 5 or 6, it is characterised in that the rare earth compounding is Europium complex or terbium coordination compound;The sensitising agent be methylene blue, rose-red, phthalocyanine compound and chlorophyll A in one kind or Combination.
8. the preparation method of microsphere composition according to claim 7, it is characterised in that the synthesis side of the europium complex Method comprises the following steps:
A, adjacent phenyl biphenyl is dissolved in dichloromethane, is added aluminium chloride, is cooled to 0 DEG C;Chloroacetic chloride is added dropwise, rear chamber is added dropwise Temperature reaction 1-2 hours, it is dried to obtain solids I;
B, the solids I is dissolved in absolute ether, adds sodium methoxide and Trifluoroacetic Acid Ethyl Ester, react at room temperature 2-3 hours, It is dried to obtain solids II;
C, six trichloride hydrate europiums are well mixed with the solids II, add absolute ethyl alcohol dissolving, stirring adds ammoniacal liquor extremely PH to 7-9, after reacting at room temperature 1-2 hours, water is added into system, filter, be dried to obtain solids III;
D, take 4,7- diphenyl -1,10- phenanthroline to dissolve by heating and recrystallization crystal is collected after ethanol, cooling;Take the heavy knot Jingjing body and 4,7- diphenyl -1,10- phenanthroline are added in toluene, are stirred 1-2 hours, are cooled to room temperature, except toluene, obtain europium Complex.
9. the preparation method of microsphere composition according to claim 8, it is characterised in that the synthesis side of the europium complex Method comprises the following steps
A, the adjacent phenyl biphenyl of 4500-5000 parts by weight is dissolved in the anhydrous methylene chloride of 30-50 parts by volume, added The aluminium chloride of 5500-6000 parts by weight, it is cooled to 0 DEG C;The chloroacetic chloride of 3500-4500 parts by weight is added dropwise, rear room temperature is added dropwise 1-2 hours are reacted, after the organic phase in system is washed with water three times, 5000-6000 weight is obtained with anhydrous sodium sulfate drying Part solids I;
B, take the solids I of 3000-3500 parts by weight to be dissolved in the absolute ether of 30-50 parts by volume, add 1500- The sodium methoxide of 2500 parts by weight and the Trifluoroacetic Acid Ethyl Ester of 3000-5000 parts by weight, 2-3 hours are reacted at room temperature, by system After organic phase is washed with water three times, the solids II of 1000-2000 parts by weight is obtained with anhydrous sodium sulfate drying;
C, six trichloride hydrate europiums of 2800-3200 parts by weight are mixed with the solids II of 6000-6800 parts by weight It is even, the absolute ethyl alcohol dissolving of 30-50 parts by volume is added, stirring adds the ammoniacal liquor of 1500-2500 parts by volume to pH to 7-9, room temperature After reaction 1 hour, the water of 600-1000 parts by volume is added into system, precipitation is collected by filtration, and precipitation is dried to obtain solid Thing III;
D, 4,7- diphenyl -1,10- phenanthroline of 3000-5000 parts by weight is taken to dissolve by heating in the ethanol of 100-150 parts by volume, Recrystallization crystal is collected after cooling;Take the recrystallization crystal and the 4,7- of 800-1200 parts by weight of 2500-3500 parts by weight Diphenyl -1,10- phenanthroline is added in the toluene of 200-400 parts by volume, and 1-2 hours are stirred at 62 DEG C, room temperature are cooled to, except first Benzene, obtain europium complex;
In methods described, parts by weight/parts by volume is:g/L.
10. the preparation method of microsphere composition according to claim 7, it is characterised in that the thioxene and β- The synthetic method of two butanone comprises the following steps:
A, bromoaniline is dissolved in DMF, adds bromotetradecane and diisopropylethylamine, 100 DEG C of reaction 10-14 hours Afterwards, dichloromethane is added into reaction solution, recrystallizes to obtain N, N- bis- substitutes para-bromoaniline;
B, by the N, the dibasic para-bromoaniline of N-, magnesium rod and iodine are dissolved in wiring solution-forming in THF, under the conditions of maintaining the reflux for, Solution is added drop-wise in THF, back flow reaction 1 hour after liquid feeding, is cooled to 0 DEG C, into system add benzoyl hydroperoxide and THF, 2-3 hours are reacted at room temperature;After hydrochloric acid is added into system to hydrolyze the salt of generation, dichloromethane is added into system, Dry and chromatograph isolated intermediate;
C, the intermediate is dissolved in toluene solution, adds zinc chloride and 2 mercapto ethanol, back flow reaction 3-5 hours, remove Toluene chromatographs to obtain thioxene and β-two butanone.
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