Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Artemisinin derivatives freeze-dried preparation and preparation method

A technology for freeze-dried preparations and derivatives, which is applied in the field of freeze-dried preparations and preparations of artemisinin derivatives, which can solve problems such as organic solvent residues and microbial contamination, and achieve the effects of short production cycle, fast dissolution speed, and investment saving

Active Publication Date: 2010-05-19
KPC PHARM INC
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the safety problems such as organic solvent residues and microbial contamination in the prior art, and provide a brand-new Artemisia annua with stable drug composition, easily soluble in water, fast dissolution speed, and stable compatibility with commonly used clinical infusions. Freeze-dried preparation and preparation method of steroid derivatives

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Artemisinin derivatives freeze-dried preparation and preparation method
  • Artemisinin derivatives freeze-dried preparation and preparation method
  • Artemisinin derivatives freeze-dried preparation and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] formula:

[0029] Artemether (conventional refined powder, particle size greater than 315μm) 60g

[0030] Hydroxypropyl-β-cyclodextrin 2350g

[0031] Made into 1000

[0032] Weigh the prescription amount of hydroxypropyl-β-cyclodextrin, first dissolve 1600g in 4000ml water for injection to make a concentration of 40%, heat it to 70℃~90℃, add the prescription amount of artemether (particle size greater than 315μm), stir, add the remaining hydroxypropyl-β-cyclodextrin, stir to dissolve, add water for injection to 5000ml, fill and freeze-dry to obtain the finished product.

Embodiment 2

[0034] formula:

[0035] Artemether (fine powder 1.0μm~10μm) 60g

[0036] Hydroxypropyl-β-cyclodextrin 2200g

[0037] Made into 1000

[0038] A low-temperature pulverizer (0°C-10°C) is used to pulverize artemether to obtain artemether with a particle size of 1.0μm-10μm. Separately weigh the prescription amount of hydroxypropyl-β-cyclodextrin, first dissolve 1800g in 4000ml water for injection to make 45% concentration, heat to 50℃~60℃, add prescription amount of artemether, stir, Then add the remaining hydroxypropyl-β-cyclodextrin, stir to dissolve, add water for injection to 5000ml, fill and freeze-dry to obtain the finished product.

Embodiment 3

[0040] formula:

[0041] Artemether (micropowder 1.0μm~20μm) 80g

[0042] Sulfobutyl ether-β-cyclodextrin 440

[0043] Methyl-β-cyclodextrin 2000

[0044] Made into 1000

[0045] A low-temperature pulverizer (0°C-10°C) is used to pulverize artemether to obtain artemether with a particle size of 1.0μm-20μm. Separately weigh the prescribed amount of sulfobutyl ether-β-cyclodextrin and methyl-β-cyclodextrin, first dissolve 1200g of methyl-β-cyclodextrin in 4000ml water to make a concentration of 30%, add Warm to 50℃~60℃, add the prescription amount of artemether, stir, then add the remaining methyl-β-cyclodextrin and sulfobutyl ether-β-cyclodextrin, stir to dissolve, add water for injection until 5000ml, filled and freeze-dried to get the finished product.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The present invention relates to a frozen dry preparation of drug artemisinin derivatives and the preparation method. The present invention is composed of artemisinin derivatives and water-soluble cyclodextrin derivatives, the weight ratio of the artemisinin derivatives and water-soluble cyclodextrin derivatives is 1: 30 to 70, the smashed artemisinin derivatives are added into the water solutionof the water-soluble cyclodextrin derivatives at 50 DEG C to 90 DEG C for agitating and dissolving, then the frozen dry preparation is prepared by the conventional process of the injection and the frozen drying. The low-temperature micro-powder technology of the present invention has the advantages that the technology can ensure the physical and chemical properties of the artemisinin derivatives to be consistent before and after the smashing, the process is relatively simple compared with the prior art, the equipments make use of the existing production equipments of the company, thus saving the investment and shorten the production cycle; the dispensing solvent is the water for injection, without the organic solvents, surfactants and cosolvents, so as to improve the safety; the present invention is easy to be dissolved in water, and has fast dissolution speed and the infinite dilution stability, thus avoiding the secondary pollution caused in the other methods which firstly prepare the artemisinin derivatives into the inclusions by using the organic solvents and then sub-package the inclusions thereof.

Description

Technical field [0001] The invention relates to the technical field of medicines, in particular to a freeze-dried preparation of artemisinin derivatives for intravenous injection and a preparation method. Background technique [0002] Artemisinin derivatives, a well-known antimalarial drug, have a unique chemical structure, good clinical curative effect, and low side effects. Artemisinin drugs are clinically recommended by WHO for the prevention and treatment of malaria. Recent literature reports that artemisinin drugs also have anti-tumor effects, but artemisinin drugs have low solubility in water and are poorly soluble drugs. Vegetable oils are used as solvents for the preparation of injections. Clinically, only intramuscular injections can be used. Long-term use can easily cause muscle agglomeration and necrosis at the injection site, so the development of a new preparation that can be administered intravenously has clinical practical significance. To develop preparations for...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61K9/19A61K31/365A61K31/366A61K31/357A61K47/48A61K47/40A61P35/00A61P33/06A61K47/61
CPCY02A50/30
Inventor 陈云建黄照昌张嗣昆吴宏宾
Owner KPC PHARM INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com