CN106176644B - A kind of clopidogrel sulfate solid tablet and preparation method thereof - Google Patents

A kind of clopidogrel sulfate solid tablet and preparation method thereof Download PDF

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CN106176644B
CN106176644B CN201610681842.7A CN201610681842A CN106176644B CN 106176644 B CN106176644 B CN 106176644B CN 201610681842 A CN201610681842 A CN 201610681842A CN 106176644 B CN106176644 B CN 106176644B
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clopidogrel
silica gel
gel powder
superfine silica
weight
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CN106176644A (en
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陈庆
曾军堂
姜维
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Zhejiang Gaozhi Pharmaceutical Technology Co ltd
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Chengdu New Keli Chemical Science Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/4353Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
    • A61K31/4365Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system having sulfur as a ring hetero atom, e.g. ticlopidine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2013Organic compounds, e.g. phospholipids, fats
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2022Organic macromolecular compounds
    • A61K9/205Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2022Organic macromolecular compounds
    • A61K9/205Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2054Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose

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Abstract

The present invention proposes a kind of clopidogrel sulfate solid tablet and preparation method thereof.It is characterized in that wrapping up clopidogrel sulfate, and the solid tablet stable equipped with the modified superfine silica gel powder of trim,ethylchlorosilane by sodium alginate micro ball.The clopidogrel sulfate solid tablet is equipped with microcrystalline cellulose, vitamin E, filler, disintegrating agent, lubricant, sodium alginate micro ball and modified superfine silica gel powder using bisulfate clopidogrel as main ingredient.By carrying out the surface modified processing of trim,ethylchlorosilane to the superfine silica gel powder with hollow meso-hole structure, clopidogrel sulfate is wrapped up using sodium alginate micro ball, it is mixed with modified superfine silica gel powder, solve the problems, such as that clopidogrel is degraded to clopidogrel acid in clopidogrel sulfate solid pharmaceutical preparation and clopidogrel dextroisomer is converted into laevoisomer, ensure safety of the clopidogrel tablet in the stability and medicine use process during storage, it is made more effectively to play therapeutic effect.Preparation process is simple, particularly suitable for industrialized production.

Description

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.

Claims (8)

1. a kind of clopidogrel sulfate solid tablet, it is characterized in that clopidogrel sulfate is wrapped up by sodium alginate micro ball, and Equipped with the solid tablet that the modified superfine silica gel powder of trim,ethylchlorosilane is stable, raw material composition includes: 75 weight of clopidogrel sulfate 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%.
2. a kind of clopidogrel sulfate solid tablet according to claim 1, it is characterised in that the clopidogrel Sulfate is I type bisulfate clopidogrel or II type bisulfate clopidogrel.
3. a kind of clopidogrel sulfate solid tablet according to claim 1, it is characterised in that the filler is The mixture of one or both of fatty ester of maltose, hydroxypropyl-β-cyclodextrin, amylum pregelatinisatum, lactose.
4. a kind of clopidogrel sulfate solid tablet according to claim 1, it is characterised in that the disintegrating agent by Low-substituted hydroxypropyl cellulose and diatomite are that 1:1 ~ 3 is formed in mass ratio.
5. a kind of clopidogrel sulfate solid tablet according to claim 1, it is characterised in that the lubricant is Talcum powder, polyethylene glycol, any one in magnesium stearate.
6. a kind of preparation method of clopidogrel sulfate solid tablet described in claim 1, it is characterised in that specific preparation Method is 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 is 1:40~80 are dispersed with stirring 1 ~ 2h, obtain superfine silica gel powder dispersion liquid;80 ~ 120 DEG C are warming up to, trim,ethylchlorosilane is added dropwise, is continued 2 ~ 4h is stirred, is filtered, is 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, be mixed and divide in high speed mixing smelting machine It dissipates, 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, is added in step (1) Obtained modification superfine silica gel powder 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 clopidogrel Sulfate solid tablet.
7. a kind of preparation method of clopidogrel sulfate solid tablet according to claim 6, it is characterised in that step (1) dispersing agent described in is in sodium polymethacrylate, dodecanol, triethanolamine or Non-ionic dispersant YRC Any one, dosage is the 0.5 ~ 5% of superfine silica gel powder weight.
8. a kind of preparation method of clopidogrel sulfate solid tablet according to claim 6, it is characterised in that step (1) additive amount of the trim,ethylchlorosilane described in is the 5 ~ 20% of superfine silica gel powder weight.
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