A kind of clopidogrel sulfate solid tablet and preparation method thereof
Technical field
The invention belongs to pharmaceutical technology field, it is related to a kind of pharmaceutical preparation and preparation method thereof, more particularly to a kind of chlorine
Pyrrole Gray's sulfate solid tablet and preparation method thereof.
Background technique
Clopidogrel, its chemical name is (+)-(S)-α-(2- Chloro-O-Phenyl) -6,7- dihydro-thiophene simultaneously [3,2-c] pyrroles
Pyridine -5 (4H)-methyl acetate inhibits to the property of can choose the combination of adenosine diphosphate (ADP) (ADP) and its platelet receptor and secondary
The activation for the sugar-protein compound that ADP is mediated reaches inhibition blood by inhibiting platelet aggregation to reduce the chance of obstruction of artery
The effect of platelet aggregation plays pre- anti-stroke and heart attack curative effect, at present artery congee clinically mainly used for treating
Sample hardens disease, acute coronary artery syndrome, prevents restenosis and thrombotic complications etc. in coronary stenting after-poppet.
Clopidogrel is administered usually in the form of sulphate salt, i.e. bisulfate clopidogrel, but presently commercially available hydrogen sulfate
There are many problems for clopidogrel, and degradation and configuration transition problem such as easily occurs.In clopidogrel molecule structure containing ester bond and
Chiral carbon, it is clopidogrel acid that Degradation and Transformation is easy to happen under the influence ofs environmental factor such as illumination, pH, humidity etc., and is being prepared
In the process in clopidogrel sulfate tablet, the dextroisomer of clopidogrel is easier to be converted into laevoisomer.Existing report
Show the laevoisomer of clopidogrel almost without the effect of anti-platelet aggregation, and its toxicity is apparently higher than clopidogrel
Dextroisomer, therefore the content of clopidogrel laevoisomer has increased slightly, and just has a great impact to the success of operation, it is close
Cut the life and health for being associated with patient.So the content of laevoisomer and the clopidogrel acid of strict control clopidogrel is control
The important indicator of the quality of production processed.For the problem present on, the prior art uses a variety of methods and attempts to solve.
China Patent Publication No. CN101766573A discloses the preparation process of clopidogrel bisulfate solid preparation, the chlorine
Pyrrole Gray is pre-mixed particle and is made of the superfine silica gel powder of bisulfate clopidogrel and package bisulfate clopidogrel, wherein micro mist
The weight of silica gel is the 0.5-10% of bisulfate clopidogrel weight, and the average grain diameter of bisulfate clopidogrel is 10-100 μm.
Superfine silica gel powder is added in the invention can effectively reduce the bonding situation in punching course, improve final product quality.
The solid composite medicament of bisulfate clopidogrel is disclosed in Chinese patent application CN101721410A, is contained
I crystal bisulfate clopidogrel, Macrogol 6000 and superfine silica gel powder, and the disintegration selected from low-substituted hydroxypropyl cellulose
Agent and filler selected from one or more of microcrystalline cellulose, dextrin and pre-paying starch.Superfine silica gel powder can in the invention
To keep the stabilization of I crystal bisulfate clopidogrel jointly with polyethylene glycol, degradation is protected it from or to II transformation of crystal;Separately
On the one hand, superfine silica gel powder also acts as the effect of antiplastering aid, glidant in the present invention, has well solved viscous in tableting processes
Rush problem.
China Patent Publication No. 1935119 discloses solid pharmaceutical preparation of clopidogrel sulfate and preparation method thereof, this is solid
It joined palmitic acid stearic acid ester of glycerol and superfine silica gel powder in body preparation, be prepared for clopidogrel sulphur by grinding equal increments method
Hydrochlorate, the dextroisomer for being effectively reduced clopidogrel are converted into laevoisomer, with increasing solid pharmaceutical preparation stability
And safety.
In conclusion the technology for solving clopidogrel sulfate stability difference at present mainly adds lubricant or package
Superfine silica gel powder or the mixture with other auxiliary agents are such as added in agent, although can improve the stability of clopidogrel, without basic
Upper solution clopidogrel sulfate degradation and configuration transition problem.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of clopidogrel sulfate solid tablets and preparation method thereof.
It is characterized in that wrapping up clopidogrel sulfate by sodium alginate micro ball, and stable equipped with the modified superfine silica gel powder of trim,ethylchlorosilane
Solid tablet.The clopidogrel sulfate solid tablet is equipped with microcrystalline cellulose, dimension life using bisulfate clopidogrel as main ingredient
Plain E, filler, disintegrating agent, lubricant, sodium alginate micro ball and modified superfine silica gel powder.By to hollow meso-hole structure
Superfine silica gel powder carries out the surface modified processing of trim,ethylchlorosilane, wraps up clopidogrel sulfate using sodium alginate micro ball,
It is mixed with modified superfine silica gel powder, solves clopidogrel in clopidogrel sulfate solid pharmaceutical preparation and be degraded to clopidogrel acid and chlorine
The problem of pyrrole Gray's dextroisomer is converted into laevoisomer, it is ensured that stability of clopidogrel tablet during storage and
Safety in medicine use process makes it more effectively play therapeutic effect;The modification superfine silica gel powder of addition can be with simultaneously
The processing fluidity for increasing substantially clopidogrel sulfate solves the problems, such as the sticking in preparation process, is suitble to industrialized production.
To solve the above problems, the invention adopts the following technical scheme:
A kind of clopidogrel sulfate solid tablet, it is characterized in that clopidogrel sulfate is wrapped up by sodium alginate micro ball,
And the solid tablet stable equipped with the modified superfine silica gel powder of trim,ethylchlorosilane, raw material composition includes: 75 weight of clopidogrel sulfate
Measure part, 20 ~ 50 parts by weight of microcrystalline cellulose, 0.1 ~ 5 parts by weight of vitamin E, 10 ~ 40 parts by weight of filler, sodium alginate micro ball 5
~ 15 parts by weight, trim,ethylchlorosilane modified 1 ~ 10 parts by weight of superfine silica gel powder, 1 ~ 10 parts by weight of disintegrating agent, 1 ~ 10 weight of lubricant
Part, wherein the modified superfine silica gel powder of the trim,ethylchlorosilane is handled by trim,ethylchlorosilane surface modification superfine silica gel powder
Superfine silica gel powder.
The modified superfine silica gel powder of the trim,ethylchlorosilane is hollow meso-hole structure, and partial size is 50 ~ 200nm, aperture is 5 ~
30nm, hollow volume are 70 ~ 80%.
The clopidogrel sulfate is I type bisulfate clopidogrel or II type bisulfate clopidogrel.
The filler is one of fatty ester of maltose, hydroxypropyl-β-cyclodextrin, amylum pregelatinisatum, lactose
Or two kinds of mixture.
The disintegrating agent is that 1:1 ~ 3 form by low-substituted hydroxypropyl cellulose and diatomite in mass ratio.
The lubricant is talcum powder, polyethylene glycol, any one in magnesium stearate.
The present invention further provides a kind of preparation method of clopidogrel sulfate solid tablet, specific preparation steps
Are as follows:
(1) will with the superfine silica gel powder of hollow meso-hole structure be sieved choose 100 ~ 200 mesh, with dispersing agent 1000r/min ~
It is added in dimethylbenzene organic solvent under the mixing speed of 5000r/ min, the mass volume ratio of superfine silica gel powder and organic solvent
For 1:40~80, it is dispersed with stirring 1 ~ 2h, obtains superfine silica gel powder dispersion liquid;80 ~ 120 DEG C are warming up to, trim,ethylchlorosilane is added dropwise,
Continue to stir 2 ~ 4h of meal, filters, cleaned respectively with acetone, ethyl alcohol, deionized water, be dried to obtain modified superfine silica gel powder;
(2) it weighs clopidogrel sulfate and sodium alginate micro ball crosses 100 ~ 200 meshes, then mixing is stirred in high speed mixing smelting machine
Dispersion is mixed, makes clopidogrel sulfate uniform load in sodium alginate micro ball;
(3) it is proportionally added into microcrystalline cellulose, vitamin E and filler in step (2) to be uniformly mixed, step is added
(1) modified superfine silica gel powder obtained in is uniformly mixed tabletting, and gained tablet grinding and sieving is pelletized;
(4) particle for obtaining step (3) and disintegrating agent and mix lubricant uniformly after direct pressing to get a kind of chlorine pyrrole
Gray's sulfate solid tablet.
Dispersing agent described in above-mentioned steps (1) is selected from sodium polymethacrylate, dodecanol, triethanolamine or nonionic
Any one in type hyper-dispersant YRC;The dosage of dispersing agent is the 0.5 ~ 5% of superfine silica gel powder weight.
The additive amount of trim,ethylchlorosilane described in above-mentioned steps (1) is the 5 ~ 20% of superfine silica gel powder weight.
A kind of clopidogrel sulfate solid tablet of the present invention and preparation method thereof, it is compared with prior art, outstanding
Feature and excellent effect are:
1, the superfine silica gel powder of the surface modified processing of trim,ethylchlorosilane is added in the present invention as clopidogrel sulfuric acid
The stabilizer of salt, it is effective inhibit clopidogrel be degraded to clopidogrel acid and clopidogrel dextroisomer be converted into it is left-handed different
Structure body, it is ensured that the stability of clopidogrel tablet makes it more effectively play therapeutic effect.
2, the modification superfine silica gel powder added in the present invention can increase substantially the processing fluidity of clopidogrel sulfate,
It solves the problems, such as the sticking in preparation process, is suitble to industrialized production.
3, clopidogrel sulfate solid tablet formula of the present invention is reasonable, using sodium alginate micro ball as hydrogen sulfate chlorine pyrrole
The coating agent of Gray, the problem of effectively preventing clopidogrel sulfate from degrading, obtained tablet quality are stablized, reproducibility
It is good.
4, the present invention uses direct tablet compressing method, and simple process is easy to industrialized production, prepared clopidogrel sulfuric acid
Salt solid tablet stability is good.
Specific embodiment
The present invention is explained in detail below in conjunction with specific embodiment, is not restricted to the present invention.It is not departing from
In the case where above method thought of the present invention, the various replacements made according to ordinary skill knowledge and customary means or change
Into should all be included in the protection scope of the present invention.
Embodiment 1
Component proportion:
Material name | Dosage |
I type bisulfate clopidogrel | 75 parts by weight (in terms of clopidogrel free alkali) |
Microcrystalline cellulose | 20 parts by weight |
Vitamin E | 0.1 parts by weight |
Fatty ester of maltose | 10 parts by weight |
Low-substituted hydroxypropyl cellulose | 1 parts by weight |
Diatomite | 1 parts by weight |
Talcum powder | 1 parts by weight |
Sodium alginate micro ball | 5 parts by weight |
Modified superfine silica gel powder | 1 parts by weight |
Preparation method:
(1) it will be sieved with the superfine silica gel powder of hollow meso-hole structure and choose 100 ~ 200 mesh, disperse with sodium polymethacrylate
Agent is added in dimethylbenzene organic solvent under the mixing speed of 1000r/min ~ 5000r/ min, superfine silica gel powder with it is organic molten
The mass volume ratio of agent is 1:40, is dispersed with stirring 1 ~ 2h, obtains superfine silica gel powder dispersion liquid;120 DEG C are warming up to, trimethyl is added dropwise
Chlorosilane continues to stir meal 2h, filters, cleaned respectively with acetone, ethyl alcohol, deionized water, be dried to obtain modified superfine silica gel powder;Its
The dosage of middle dispersing agent is the 0.5% of superfine silica gel powder weight, and the additive amount of trim,ethylchlorosilane is the 5% of superfine silica gel powder weight.
(2) it weighs I type bisulfate clopidogrel and sodium alginate micro ball crosses 100 ~ 200 meshes, then mixed in high speed mixing smelting machine
Conjunction is dispersed with stirring, and makes clopidogrel sulfate uniform load in sodium alginate micro ball.
(3) it is proportionally added into microcrystalline cellulose, vitamin E and fatty ester of maltose in step (2) to be uniformly mixed, adds
Enter modified superfine silica gel powder obtained in step (1) and be uniformly mixed tabletting, gained tablet grinding and sieving is pelletized.
(4) particle and low-substituted hydroxypropyl cellulose, diatomite and talcum powder obtained step (3) is straight after mixing
Compacting is connect to get a kind of clopidogrel sulfate solid tablet.
Embodiment 2
Component proportion:
Material name | Dosage |
II type bisulfate clopidogrel | 75 parts by weight (in terms of clopidogrel free alkali) |
Microcrystalline cellulose | 30 parts by weight |
Vitamin E | 1 parts by weight |
Hydroxypropyl-β-cyclodextrin | 20 parts by weight |
Low-substituted hydroxypropyl cellulose | 1 parts by weight |
Diatomite | 3 parts by weight |
Polyethylene glycol | 4 parts by weight |
Sodium alginate micro ball | 8 parts by weight |
Modified superfine silica gel powder | 3 parts by weight |
Preparation method:
(1) it will be sieved with the superfine silica gel powder of hollow meso-hole structure and choose 100 ~ 200 mesh, exist with dodecanol dispersing agent
It is added in dimethylbenzene organic solvent under the mixing speed of 1000r/min ~ 5000r/ min, superfine silica gel powder and organic solvent
Mass volume ratio is 1:50, is dispersed with stirring 1 ~ 2h, obtains superfine silica gel powder dispersion liquid;100 DEG C are warming up to, trimethylchloro-silicane is added dropwise
Alkane continues to stir meal 3h, filters, cleaned respectively with acetone, ethyl alcohol, deionized water, be dried to obtain modified superfine silica gel powder;Wherein divide
The dosage of powder is the 2% of superfine silica gel powder weight, and the additive amount of trim,ethylchlorosilane is the 8% of superfine silica gel powder weight.
(2) it weighs II type bisulfate clopidogrel and sodium alginate micro ball crosses 100 ~ 200 meshes, then mixed in high speed mixing smelting machine
Conjunction is dispersed with stirring, and makes clopidogrel sulfate uniform load in sodium alginate micro ball.
(3) microcrystalline cellulose, vitamin E and hydroxypropyl-β-cyclodextrin is proportionally added into in step (2) to be uniformly mixed,
Modified superfine silica gel powder obtained in step (1) is added and is uniformly mixed tabletting, gained tablet grinding and sieving is pelletized.
(4) particle for obtaining step (3) and low-substituted hydroxypropyl cellulose, diatomite and polyethylene glycol be after mixing
Direct pressing is to get a kind of clopidogrel sulfate solid tablet.
Embodiment 3
Component proportion (clopidogrel content 75mg/ piece):
Material name | Dosage |
I type bisulfate clopidogrel | 75 parts by weight (in terms of clopidogrel free alkali) |
Microcrystalline cellulose | 40 parts by weight |
Vitamin E | 2 parts by weight |
Amylum pregelatinisatum | 30 parts by weight |
Low-substituted hydroxypropyl cellulose | 2 parts by weight |
Diatomite | 3 parts by weight |
Magnesium stearate | 6 parts by weight |
Sodium alginate micro ball | 10 parts by weight |
Modified superfine silica gel powder | 6 parts by weight |
Preparation method:
(1) it will be sieved with the superfine silica gel powder of hollow meso-hole structure and choose 100 ~ 200 mesh, exist with triethanolamine dispersant
It is added in dimethylbenzene organic solvent under the mixing speed of 1000r/min ~ 5000r/ min, superfine silica gel powder and organic solvent
Mass volume ratio is 1:60, is dispersed with stirring 1 ~ 2h, obtains superfine silica gel powder dispersion liquid;80 DEG C are warming up to, trimethylchloro-silicane is added dropwise
Alkane continues to stir meal 4h, filters, cleaned respectively with acetone, ethyl alcohol, deionized water, be dried to obtain modified superfine silica gel powder;Wherein divide
The dosage of powder is the 3% of superfine silica gel powder weight, and the additive amount of trim,ethylchlorosilane is the 12% of superfine silica gel powder weight.
(2) it weighs I type bisulfate clopidogrel and sodium alginate micro ball crosses 100 ~ 200 meshes, then mixed in high speed mixing smelting machine
Conjunction is dispersed with stirring, and makes clopidogrel sulfate uniform load in sodium alginate micro ball.
(3) it is proportionally added into microcrystalline cellulose, vitamin E and amylum pregelatinisatum in step (2) to be uniformly mixed, step is added
Suddenly modified superfine silica gel powder obtained in (1) is uniformly mixed tabletting, and gained tablet grinding and sieving is pelletized.
(4) particle for obtaining step (3) and low-substituted hydroxypropyl cellulose, diatomite and magnesium stearate be after mixing
Direct pressing is to get a kind of clopidogrel sulfate solid tablet.
Embodiment 4
Component proportion (clopidogrel content 75mg/ piece):
Material name | Dosage |
I type bisulfate clopidogrel | 75 parts by weight (in terms of clopidogrel free alkali) |
Microcrystalline cellulose | 50 parts by weight |
Vitamin E | 3 parts by weight |
Lactose | 40 parts by weight |
Low-substituted hydroxypropyl cellulose | 2 parts by weight |
Diatomite | 4 parts by weight |
Talcum powder | 10 parts by weight |
Sodium alginate micro ball | 12 parts by weight |
Modified superfine silica gel powder | 8 parts by weight |
Preparation method:
(1) it will be sieved with the superfine silica gel powder of hollow meso-hole structure and choose 100 ~ 200 mesh, with Non-ionic dispersant
YRC dispersing agent is added in dimethylbenzene organic solvent under the mixing speed of 1000r/min ~ 5000r/ min, superfine silica gel powder with
The mass volume ratio of organic solvent is 1:60, is dispersed with stirring 1 ~ 2h, obtains superfine silica gel powder dispersion liquid;100 DEG C are warming up to, is added dropwise
Trim,ethylchlorosilane continues to stir meal 3h, filters, cleaned respectively with acetone, ethyl alcohol, deionized water, be dried to obtain modified micro mist
Silica gel;Wherein the dosage of dispersing agent is the 4% of superfine silica gel powder weight, and the additive amount of trim,ethylchlorosilane is superfine silica gel powder weight
15%。
(2) it weighs clopidogrel sulfate and sodium alginate micro ball crosses 100 ~ 200 meshes, then mixing is stirred in high speed mixing smelting machine
Dispersion is mixed, makes clopidogrel sulfate uniform load in sodium alginate micro ball.
(3) it is proportionally added into microcrystalline cellulose, vitamin E and lactose in step (2) to be uniformly mixed, is added step (1)
Obtained in modified superfine silica gel powder be uniformly mixed tabletting, gained tablet grinding and sieving is pelletized.
(4) particle and low-substituted hydroxypropyl cellulose, diatomite and talcum powder obtained step (3) is straight after mixing
Compacting is connect to get a kind of clopidogrel sulfate solid tablet.
Embodiment 5
Component proportion:
Material name | Dosage |
II type bisulfate clopidogrel | 75 parts by weight (in terms of clopidogrel free alkali) |
Microcrystalline cellulose | 50 parts by weight |
Vitamin E | 5 parts by weight |
Fatty ester of maltose | 20 parts by weight |
Lactose | 20 parts by weight |
Low-substituted hydroxypropyl cellulose | 5 parts by weight |
Diatomite | 5 parts by weight |
Talcum powder | 8 parts by weight |
Sodium alginate micro ball | 15 parts by weight |
Modified superfine silica gel powder | 10 parts by weight |
Preparation method:
(1) it will be sieved with the superfine silica gel powder of hollow meso-hole structure and choose 100 ~ 200 mesh, exist with triethanolamine dispersant
It is added in dimethylbenzene organic solvent under the mixing speed of 1000r/min ~ 5000r/ min, superfine silica gel powder and organic solvent
Mass volume ratio is 1:80, is dispersed with stirring 1 ~ 2h, obtains superfine silica gel powder dispersion liquid;120 DEG C are warming up to, trimethylchloro-silicane is added dropwise
Alkane continues to stir meal 2h, filters, cleaned respectively with acetone, ethyl alcohol, deionized water, be dried to obtain modified superfine silica gel powder;Wherein divide
The dosage of powder is the 5% of superfine silica gel powder weight, and the additive amount of trim,ethylchlorosilane is the 20% of superfine silica gel powder weight.
(2) it weighs clopidogrel sulfate and sodium alginate micro ball crosses 100 ~ 200 meshes, then mixing is stirred in high speed mixing smelting machine
Dispersion is mixed, makes clopidogrel sulfate uniform load in sodium alginate micro ball.
(3) microcrystalline cellulose, vitamin E and fatty ester of maltose, lactose mixing are proportionally added into in step (2)
It is even, modified superfine silica gel powder obtained in step (1) is added and is uniformly mixed tabletting, gained tablet grinding and sieving is pelletized.
(4) particle and low-substituted hydroxypropyl cellulose, diatomite and talcum powder obtained step (3) is straight after mixing
Compacting is connect to get a kind of clopidogrel sulfate solid tablet.
Beneficial effects of the present invention are illustrated below by detection.
One, anti-stick to rush effect test
| Tabletting effect | Qualification rate % |
Embodiment 1 | Phenomenon is rushed again without viscous, it is unilateral bright and clean | Greater than 98% |
Embodiment 2 | Phenomenon is rushed again without viscous, it is unilateral bright and clean | Greater than 98% |
Embodiment 3 | Phenomenon is rushed again without viscous, it is unilateral bright and clean | Greater than 99% |
Embodiment 4 | Phenomenon is rushed again without viscous, it is unilateral bright and clean | Greater than 99% |
Embodiment 5 | Phenomenon is rushed again without viscous, it is unilateral bright and clean | Greater than 99% |
Comparative example | There is sticking phenomenon more than 100 | 95% |
Modified superfine silica gel powder is changed to common superfine silica gel powder in above-mentioned comparative example.By the above test result as it can be seen that the present invention
Formula, which adds modified superfine silica gel powder, can have the function that fine anti-stick punching, and than common superfine silica gel powder anti-stick, to rush effect good.
Two, accelerated stability test
1, Testing index and method
Using ovomucoid bonding spherical silica gel as filler, with acetonitrile -0.01mol/L potassium dihydrogen phosphate (25:
75) be mobile phase, under conditions of 220nm Detection wavelength, carry out accelerate and long-term stable experiment, detection clopidogrel acid and
The content of clopidogrel laevoisomer.The content difference of national regulation, clopidogrel acid and clopidogrel laevoisomer is not
More than 0.2% and 1%.
2, embodiment sample and prior art reference substance testing result
The above test results show that the present invention wraps up clopidogrel sulfate by sodium alginate micro ball, and it is furnished with trimethyl
The modified superfine silica gel powder of chlorosilane can effectively inhibit clopidogrel dextroisomer to be converted into laevoisomer, improve chlorine pyrrole lattice
The stability of thunder, while improving clinical safety.