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3 results about "Provitamin" patented technology
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A provitamin is a substance that may be converted within the body to a vitamin. The term previtamin is a synonym. For example, "Provitamin B5" is a name for panthenol, which may be converted in the body to vitamin B₅ (pantothenic acid).
Docosahexaenoic acid ester for cardiovascular disease
The present invention relates to a docosahexaenoic acid ester with an alcohol chosen among the group-B vitamins or provitamins, advantageously comprised by: nicotinyl alcohol of the following formula: 1 pantthenol of the following formula:2 and inositol of the following formula:3 or with isosorbide of the following formula:4 or isosorbide mononitrate of the following formula:5 It also relates to a method of preparation of same, a pharmaceutical composition same and the of same in the treatment or prevention of cardiovascular disease, in particular auricular fibrillation.
Owner:PIERRE FABRE MEDICAMENT SAS
Vitamin D3 and its analogue Calcifediol from Ergosterol
Disclosed herein is an improved and efficient process for synthesis of vitamin D3 and its analogue Calcifediol from Ergosterol. Particularly, the present invention discloses the synthesis of key intermediate 3β-tert-Butyldimethylsilyloxy-22-hydroxy-23,24-bisnorchola-5,7-diene (5), and novel intermediate β-tert-Butyldimethylsilyloxy-22-iodo-23,24-bisnorchola-5,7-diene (9) by a simple and cost effective process. The industrially viable processes for preparation of said intermediate(s) results in providing provitamins with various side chains and the desired products in high yield.
Owner:FERMENTA BIOTECH