Microbiological synthesis of 16-ketopregnanes from steroidal sapogenins |
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| Authors: | Eiji Kondo Takashi Mitsugi |
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| Affiliation: | Shionogi Research Laboratory, Shionogi & Co., Ltd., Fukushima-ku, Osaka, Japan |
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| Abstract: | ![]()
Incubation of diosgenone (1, 25D-spirost-4-en-3-one) with Verticillium theobromae (Turconi) Mason et Hughes (CBS) afforded 20α-hydroxypregn-43) and 3α,11β,20α-trihydroxy-5α-pregnan-16-one (4). The same transformation products were also obtained by the use of Stachylidium bicolor Link (IFO 6647). Isolation and identification processes of the products are discussed. |
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