CN102516301B - Wogonin derivant for treatment - Google Patents

Wogonin derivant for treatment Download PDF

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Publication number
CN102516301B
CN102516301B CN201110385937.1A CN201110385937A CN102516301B CN 102516301 B CN102516301 B CN 102516301B CN 201110385937 A CN201110385937 A CN 201110385937A CN 102516301 B CN102516301 B CN 102516301B
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compound
wogonin
derivant
group
treatment
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CN102516301A (en
Inventor
杨成
强建华
魏宏亮
刘晓鹏
陆华龙
张起愿
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Shaanxi Weixin Pharmaceutical Co ltd
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Jiangsu Tiandirenhe Pharmaceutical Co Ltd
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Abstract

Present invention derivant that wogonin is provided and its production and use, the derivant of wogonin is by the oh group of its structure is chemically modified gained, the derivant of involved wogonin can use in pharmaceutical composition, for producing treatment hepatitis B and the medicine of leukemia treating.

Description

Wogonin derivant for treatment
Technical field:
The present invention relates to the wogonin derivant and its production and use for treatment.
Technical background:
Wogonin (wogonin) be Radix Scutellariae be in labiate Radix Scutellariae ScutellariabaicalensisGeorgi. extract a kind of flavones ingredient.The most antibacterial, diuresis, spasmolysis, but also there is stronger antivirus action.Research in recent years shows, wogonin can reduce the amount of serum of transgenic mice hepatitis B surface antigen and alleviate DHB model inflammation.The leukemia mouse time-to-live of NB4 cell induction can be extended.In the research further to wogonin, it has been found that he has stronger antitumor action, can be with the apoptosis of inducing tumor cell, and further mechanism of action is the most under study for action.Therapeutical effect about wogonin.
Therefore wogonin is as a kind of novel hepatitis B medicine, and to alleviating the misery of numerous cancer patients, the quality of life improving patient has very important effect, at home and abroad has wide market and wilderness demand.
But due to the oral administration biaavailability that it is the lowest, it is generally recognized that the commercially available preparation of wogonin is not suitable for other administering mode except parenteral, and typically must intravenous injection or input.When vein gives wogonin in a clinical setting, it is proposed that can be come for certain indication by other non-oral routes.
We are again by finding in the research to wogonin derivant, by derivative, the medicable derivant of multiple tool can be obtained, these derivants have a certain degree of difference in the chemically with wogonin, existing makes it have more preferable stability and preparations shaping, is the compound with further Development volue.
Summary of the invention:
It is an object of the invention to provide the derivant of a kind of new wogonin.
Its structure is:
N represents 0,1,2
Another object of the present invention is to provide the preparation method of wogonin derivant.
R1, R2 can be aminoacid, phosphoric acid, the residue of carboxylic acid or the composite construction with both the above residue.A can be carried out by below scheme to prepare:
Flow process A
In flow process A, group Pg1 and Pg2 of serine protection can remove under given conditions; nonrestrictive example for the useful protection group of nitrogen-atoms includes butoxy carbonyl (Boc), benzyloxycarbonyl (CBz) and 9-fluorenylmethoxycarbonyl groups (Fmoc) part, and the protection group for carboxyl includes the tert-butyl group, benzyl and 9-fluorenylmethvl ester.
In the preparation, it is possible to by reacting further with wogonin again, as prepared by flow process B after in advance derivant residue moiety being modified.
Flow process B
1 step ethylene bromohyrin in flow process B, N, N-dimethylamino naphthyridine, dicyclohexylcarbodiimide, reaction temperature 0-25 DEG C, 6-48 hour response time;2 step chloroiodomethanes, sodium bicarbonate, reaction temperature 0-50 DEG C, 1-18 hour response time;3 steps 1,3-dichloropropane, N, N-dimethylamino naphthyridine, dicyclohexylcarbodiimide, reaction temperature 0-25 DEG C, 18-60 hour response time.
Comprising in aminoacid used by the present invention and there is chiral amino acid, the present invention comprises these chiral amino acids.
Compound of the present invention can be prepared as corresponding pharmaceutically acceptable salt as required.Such as, salt such as mineral acid sulphuric acid, hydrochloric acid, phosphoric acid or organic acid such as citric acid, maleic acid etc. is become with compound amino part;Salt such as sodium salt, potassium salt, magnesium salt or the salt of organic base formation formed with compound carboxy moiety.
Typical compound of the present invention is:
In the range of the compounds of this invention effective dosage scope 80mg~5000mg, can be used for treating and preventing hepatitis B it can also be used to leukemia treating.
Below in conjunction with embodiment, the present invention is described in further detail, it should be understood that the non-scope being only limitted to these embodiments of the scope of the present invention.
Embodiment 1: the preparation of compound A
By wogonin 1.78g, it is dissolved in 20ml acetonitrile, under room temperature, slowly drips phosphorus oxychloride solution 3ml, drip and finish, reaction 5 hour is stirred at room temperature, be slowly added into frozen water stirring hydrolysis 2 hours, adding ethyl acetate and extract 10ml × 3 time, water layer is evaporated, and obtains compound A-40 .63g.
Embodiment 2: the preparation of compound B
By wogonin 2g, it is dissolved in 20ml oxolane, 20ml chloroiodomethane is added at 30 DEG C, stirring reaction 16 hours, 60 DEG C of evaporated under reduced pressure, addition 20ml acetonitrile dissolution residual substance, as intermediate, separately takes triethylamine 9ml and is dissolved in 10ml acetonitrile, drips 3.6ml phosphoric acid, after completion of dropwise addition, slowly instill intermediate under stirring, continue 60 DEG C of stirring reactions 12 hours, solvent is evaporated off, residue add water 20ml dissolve, adding ethyl acetate 10ml × 3 time washing water layer, water layer filters clarification, and lyophilizing i.e. obtains compound B0.31g.
Embodiment 3: the preparation of compound C
By serine 3 grams, ethylene bromohyrin 2.5g, N of BOC protection; N-dimethylamino naphthyridine 3g and dicyclohexylcarbodiimide 3g is dissolved in oxolane; it is stirred at room temperature 10 hours; it is concentrated in vacuo; with the thick product of chromatography purification (with the ethyl acetate of normal hexane to 30%/normal hexane eluting); merging filtrate, is evaporated to obtain intermediate A;Wogonin 2g and intermediate A 2.5g oxolane 30ml is dissolved, add triphenyl phosphorus 2g, slowly dropping diethyl azodiformate solution 2ml, room temperature reaction 5 hours, reaction is finished, evaporated under reduced pressure, add ethyl acetate 50ml to dissolve, filter insoluble matter, with the thick product of chromatography purification (with the ethyl acetate of normal hexane to 10%/normal hexane eluting), merging filtrate, it is evaporated, then dissolve with dichloromethane 20ml, it is passed through hydrogen chloride gas to saturated, stirring reaction 5 hours, filter, obtain the hydrochlorate of compound D, adjusting pH with distilled water after dissolving is about 8, water layer lyophilization obtains compound C0.27g.
Embodiment 4: the preparation of compound D
Phosphoric acid is replaced with malonic acid unlike the method preparation of enforcement 2.
Embodiment 5: the preparation of compound E
Take compound B-11 .3g, be dissolved in 30ml acetonitrile, be dividedly in some parts 5gBoc-Ser-OBZL, 50 DEG C of stirring reactions, HPLC monitoring reaction less than 5%, adds 0.1M hydrochloric acid solution 10ml to compound B, 60 DEG C add pyrohydrolysis 5 hours, regulate pH to 7, evaporated under reduced pressure, residue adds 20ml water dissolution, is dividedly in some parts ethyl acetate 10ml × 3 time washing, and water layer is evaporated, add anhydrous alcohol solution, be filtered to remove insoluble matter, evaporated under reduced pressure, adding 5ml water dissolution, filtering, lyophilization obtains compound E0.18g
Embodiment 6: prepared by compound A injection
Prescription
Taking recipe quantity adjuvant and raw material, add to 90000ml water for injection, addition 10g activated carbon, 80 DEG C are stirred decolouring 30 minutes, and the membrane filtration of 0.22 μm removes activated carbon, measure intermediates content, add water for injection, fill, and sterilizing had both obtained compound A injection.
Embodiment 7: prepared by injection compound B
Prescription:
Take the raw material of recipe quantity and each adjuvant, add 100ml water for injection, stirring, add 0.2g activated carbon, 60 DEG C are stirred 30 minutes, the membrane filtration clarification of 0.22 μm, detect intermediates content, by in the specification subpackage of every bottle of 35mg to control cillin bottle,-50 DEG C of freezings 4 hours, evacuation, intensification lyophilizing, control moisture and be not more than 5%, both obtain injection compound B.
Embodiment 8: compound B metabolism in animal body is studied
HBV transgenic mouse 40, is divided into 5 groups according to serum HbsAg concentration level, gives drug compound B respectively, high dose group 50mg/kg, middle dosage group 25mg/kg, low dose group 12.5mg/kg, positive controls (lamivudine 100mg/kg), blank experiment group (normal saline).Often 8 Mus of group, are administered 10 days, and high, medium and low dosage group was administered by tail vein injection every 2 days;Lamivudine group gastric infusion every day.Before serum sample picks up from administration respectively, it is administered 5 days, is administered 10 days and drug withdrawal 5 days.Often organize 3 Mus of each random execution after the last 24h being administered, take liver, kidney and other organs specimen;Remaining Mus is administered the last time after taking blood and puts to death, and takes liver, kidney and other organs specimen.
Serum HBsAg inspection uses hepatitis B antigen surface basis weight test kit, operation reference reagent box description to carry out.Mark curve uses recombination hepatitis B surface antigen to build.Detect after serum sample normal saline dilution 20 times.
Treating the 10th day, high dose group mice serum HBsAg content is decreased obviously, and declines about 27.1% compared with before treatment, and there were significant differences compared with before saline control group and administration;Middle dosage group mice serum HBsAg content declines about 41.7%.After drug withdrawal 5 days, high dose group and middle dosage group mice serum HBsAg content keep stable, and rebound phenomenon does not occur, and on the contrary, lamivudine group mice serum HBsAg content is relatively administered 10 days and has raised.
Conclusion: treatment hepatitis B transgenic mouse 10 days, it is possible to substantially reduce the amount of serum hepatitis B surface antigen, significance compared with matched group and treatment group.
Embodiment 9: compound B is to induction of differentiation in leukemia cyton.
Taking SCID mice and be randomly divided into four groups, often group 8, blank group gives normal saline (NS) 20ml/kg.
Compound B high dose group concentration is 50mg/kg, and middle dosage group concentration is 25mg/kg, and low dose group concentration is 12.5mg/kg, and positive controls gives retinoic acid 15mg/kg.Respectively by NB4 cell (106) 100 μ l lumbar injections are inoculated in SCID mice, within second day, start to be administered, each group two weeks respectively, observe mouse survival natural law,
Result of the test shows, compared with blank group, dosage high, middle can significantly extend the SCID mice time-to-live.

Claims (6)

1. lead to the compound of formula I and their pharmaceutical salts:
N represents 1,2
R1For aminoacid or phosphate moiety, R2For aminoacid or phosphate moiety.
2. the compound of claim 1, it is characterised in that R1For amino acid residue, R2For phosphate moiety.
3. the compound of claim 1, it is characterised in that R1For phosphate moiety, R2For amino acid residue.
4. the compound of claim 1, it is characterised in that R1、R2For amino acid residue.
5. the compound of claim 1, it is characterised in that R1、R2For phosphate moiety.
6. a Pharmaceutical composition, it is characterised in that containing treatment effective dose as described in claim 1-5 compound as active component and pharmaceutically acceptable carrier.
CN201110385937.1A 2011-11-28 2011-11-28 Wogonin derivant for treatment Active CN102516301B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103230398B (en) * 2013-04-10 2015-05-13 中国药科大学 Applications of a Wogonin derivative in the preparation of antineoplastic drugs
DE102019122569A1 (en) * 2019-08-22 2021-02-25 Mühlbauer Technology Gmbh Flavonoid derivative

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549662A (en) * 1967-10-12 1970-12-22 Takeda Chemical Industries Ltd Derivatives of baicalein
WO2004037193A2 (en) * 2002-10-22 2004-05-06 Jenken Biosciences, Inc. Chromones and chromone derivatives and uses thereof
AU2003269928A1 (en) * 2003-03-06 2004-09-30 The Medical Research And Education Trust Botanical extract compositions with anti-cancer or phytoestrogenic activity comprising prenyl flavonoids
CN1556101A (en) * 2003-12-31 2004-12-22 中国药科大学 Extraction technology of Hanbaicalein, medicinal composition and preparation technology of medicine
CN1705473A (en) * 2002-10-22 2005-12-07 詹肯生物科学公司 Chromones and chromone derivatives and uses thereof
WO2010040254A1 (en) * 2008-10-06 2010-04-15 大百汇生物科技(深圳)有限公司 The use of flavones from radix scutellariae in manufacture of medicaments for treating enterovirus infection

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040242907A1 (en) * 2003-05-30 2004-12-02 Unitech Pharmaceuticals, Inc. Methods of synthesizing flavonoids and chalcones

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549662A (en) * 1967-10-12 1970-12-22 Takeda Chemical Industries Ltd Derivatives of baicalein
WO2004037193A2 (en) * 2002-10-22 2004-05-06 Jenken Biosciences, Inc. Chromones and chromone derivatives and uses thereof
CN1705473A (en) * 2002-10-22 2005-12-07 詹肯生物科学公司 Chromones and chromone derivatives and uses thereof
AU2003269928A1 (en) * 2003-03-06 2004-09-30 The Medical Research And Education Trust Botanical extract compositions with anti-cancer or phytoestrogenic activity comprising prenyl flavonoids
CN1556101A (en) * 2003-12-31 2004-12-22 中国药科大学 Extraction technology of Hanbaicalein, medicinal composition and preparation technology of medicine
WO2010040254A1 (en) * 2008-10-06 2010-04-15 大百汇生物科技(深圳)有限公司 The use of flavones from radix scutellariae in manufacture of medicaments for treating enterovirus infection

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