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186 results about "Sinomenine" patented technology

Sinomenine or cocculine is an alkaloid found in the root of the climbing plant Sinomenium acutum which is native to Japan and China. The plant is traditionally used in herbal medicine in these countries for rheumatism and arthritis. However, its analgesic action against other kinds of pain is limited. Sinomenine is a morphinan derivative, related to opioids such as levorphanol and the non-opioid cough suppressant dextromethorphan. Its anti-rheumatic effects are thought to be primarily mediated via release of histamine, but other effects such as inhibition of prostaglandin, leukotriene and nitric oxide synthesis may also be involved.

Method for separating and preparing tetrandrine and hanfangchin through ion exchange and column chromatography on silica gel

The invention relates to a method for separating and preparing tetrandrine and hanfangchin through ion exchange and column chromatography on silica gel. Fourstamen stephania root is dried root of a menispermaceae stephania plant stephania tetrandra, an effective ingredient of the fourstamen stephania root is sinomenine, main effective ingredients of sinomenine are tetrandrine and hanfangchin, and the sinomenine has anti-myocardial ischemia, anti-arrhythmia, blood pressure lowering, anti-inflammatory, anti-silicosis, anti-cancer and analgesic effects. When in drug use, the purity requirement of the tetrandrine and hanfangchin reaches more than 99%, and extraction and purification are important reasons limiting the drug use of the tetrandrine and hanfangchin. At present, a technology for extracting and purifying the tetrandrine and hanfangchin applies massive toxic and expensive chloroform and strong base, and the chloroform has great toxic effect on human and the environment and is also strong corrosive on equipment for enlarged production; besides, sample purity is not high, and a technological process is complex. At the current situation, the invention develops a method for obtaining high-purity tetrandrine and hanfangchin through rapid separation and purification by applying ion exchange resin and a C18 bonded silica gel column chromatography and also discloses a method for recrystallizing and purifying the tetrandrine and hanfangchin by utilizing ethyl alcohol. The method provided by the invention has the advantages that a preparation technology does not apply any toxic reagent, column chromatography filler can be recycled, and ethyl alcohol can be recycled.
Owner:CSPC JIANGXI GOLDEN LOTUS PHARMA CO LTD
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