Uniform-content (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide granule wand preparation method thereof

A technology of pyrrolidine acetamide and hydroxyl group, which is applied in the field of -4-hydroxy-2 oxo-1-pyrrolidine acetamide particles and their preparation, and can solve the problem of difficult particle size control, easy adhesion and short shelf life, etc. The problem is that the preparation process is simple and feasible, and it is not easy to absorb moisture and agglomerate, and the amount of particle powder layer is small.

Inactive Publication Date: 2017-12-26
CHONGQING RUNZE PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide granules mainly have a significant increase in impurities during the preparation process, more particle powder layers, difficult particle size control,...

Method used

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  • Uniform-content (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide granule wand preparation method thereof
  • Uniform-content (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide granule wand preparation method thereof
  • Uniform-content (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide granule wand preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of (S)-4-hydroxyl-2 oxo-1-pyrrolidineacetamide granule with uniform content is prepared according to the following steps:

[0027] Element

[0028] Make 1000 bags

[0029] Preparation process:

[0030] 1. Pretreatment of raw and auxiliary materials: take the prescribed amount of polysorbate 80, (S)-4-hydroxy-2-oxo-1-pyrrolidine acetamide and dissolve them in the prescribed amount of ethanol solution, and set aside; take another prescribed amount of , L-cysteine, mannitol, microcrystalline cellulose, sodium carboxymethyl cellulose, lactose, low-substituted hydroxypropyl cellulose, and sorbitol are placed in a universal pulverizer, pulverized through a 100-mesh sieve, and set aside;

[0031] 2. Granulation: Take the pre-treated mixed powder and place it in a wet granulator, add the previously treated (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide ethanol solution and the prescribed amount of starch slurry , start the granulator (18 mesh nylon sieves are in...

Embodiment 2

[0090] A kind of (S)-4-hydroxyl-2 oxo-1-pyrrolidineacetamide granule with uniform content is prepared according to the following steps:

[0091] Element

Dosage

(S)-4-Hydroxy-2-oxo-1-pyrrolidineacetamide

1 copy

L-cysteine

1.1 copies

Mannitol

0.9 parts

microcrystalline cellulose

1.5 servings

Sodium carboxymethyl cellulose

1.0 copies

lactose

1.2 parts

Talc powder

0.17 parts

polyethylene glycol 4000

1.5 servings

hypromellose

1.3 parts

Low-substituted hydroxypropyl cellulose

1.1 copies

Polysorbate 80

0.10 parts

Sorbitol

4 parts

Starch slurry with a mass fraction of 8%

15 copies

30% ethanol solution by volume fraction

5 copies

[0092] Make 1000 bags

[0093] Preparation process: prepared according to the preparation process of Example 1. Carry out the test by the test method of embodiment 1, the Hughes angle t...

Embodiment 3

[0095] A kind of (S)-4-hydroxyl-2 oxo-1-pyrrolidineacetamide granule with uniform content is prepared according to the following steps:

[0096] Element

Dosage

(S)-4-Hydroxy-2-oxo-1-pyrrolidineacetamide

1 copy

L-cysteine

1.0 copies

Mannitol

0.8 parts

microcrystalline cellulose

1.3 parts

Sodium carboxymethyl cellulose

0.9 parts

lactose

1.1 copies

Talc powder

0.16 parts

polyethylene glycol 4000

1.3 parts

hypromellose

1.2 parts

Low-substituted hydroxypropyl cellulose

1.0 copies

Polysorbate 80

0.08 copies

Sorbitol

3 copies

Starch slurry with a mass fraction of 7%

13 copies

25% ethanol solution by volume fraction

4 parts

[0097] Make 1000 bags

[0098] Preparation process: prepared according to the preparation process of Example 1. Carry out the test by the test method of embodiment 1, the Hughes angle test m...

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Abstract

An (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide granule is prepared from, by weight, 1 part of (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide, 0.7-1.2 parts of L-cysteine, 0.6-1.0 part of mannitol, 1.1-1.6 parts of microcrystalline cellulose, 0.5-1.2 parts of carboxymethylcellulose sodium, 0.8-1.3 parts of lactose, 0.13-0.18 part of talcum powder, 1.1-1.7 parts of polyethylene glycol 4000, 0.9-1.5 parts of hydroxypropyl methylcellulose, 0.6-1.3 parts of low-substituted hydroxypropyl cellulose, 0.05-0.11 part of polysorbate 80, 1-5 parts of sorbitol, 10-16 parts of a 6-8% starch slurry and 2-5 parts of a 20-30% ethanol solution. The (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide granule prepared in the invention has the advantages of small impurity increasing amount only being 0.03%, small quantity of powder layers, uniform particle sizes, good fluidity, realization of the Xiuzi angle being less than 38 DEG and the loading difference being less than 5%, fast dissolution speed, short dissolution time being less than 30 s, good content uniformity, realization of the determination RSD of the content in multiple points being less than 2%, good stability during storage, no moisture absorbing caking, and long shelf life reaching up to 24 months.

Description

technical field [0001] The invention mainly relates to the technical field of pharmacy, in particular to (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide particles with uniform content and a preparation method thereof. Background technique [0002] Oxiracetam was launched in Italy in 1987 in the form of tablet, 800mg; capsule, 800mg; injection, 1g / 5ml. At present, only oxiracetam capsules and injections are on the market in China, and the main active ingredients used are racemates. Ye Lei et al mentioned in the patent publication No. CN 103735545 A that levoxiracetam has an obvious wake-promoting effect on coma caused by alcoholism, while dextro-oxiracetam has basically no effect. The wake-up effect is twice that of racemic oxiracetam; levo-oxiracetam has significant awakening effects on trauma and coma induced by anesthesia. Zhang Feng et al disclosed in the patent with the publication number CN103599101 A that levoxiracetam can significantly improve the learning, memory and co...

Claims

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Application Information

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IPC IPC(8): A61K9/50A61K47/38A61K47/10A61K47/26A61K47/18A61P25/00A61P25/28
CPCA61K9/5031A61K9/5047A61K9/5089A61K31/4015A61K47/18A61K47/26
Inventor 叶雷
Owner CHONGQING RUNZE PHARM CO LTD
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