652-69-7Relevant articles and documents
Oxidation of 17α,20β- and 17α,20α-dihydroxypregn-4- en-3-ones, side products of progesterone biotransformation with recombinant microorganisms expressing cytochrome P-45017α
Shkumatov,Usova,Radyuk,Kashkan,Kovganko,Juretzek,Mauersberger
, p. 581 - 587 (2007/10/03)
Progesterone biotransformation with recombinant yeasts Yarrowia lipolytica E129A15 and Saccharomyces cerevisiae GRF18/YEp5117α expressing bovine adrenocortical cytochrome P-45017α yielded 17α-hydroxyprogesterone and two diols, 17α,20β- and 17α,20α-dihydroxypregn-4-en- 3-ones. The oxidation of mixtures of the three steroids with chromic acid resulted in the cleavage of 17-20 bonds in the diols with the formation of androst-4-ene-3,17-dione. The biotransformation of pregn-4-ene-20β-ol-3-one by means of Y. lipolytica E129A15 was accompanied by the following reactions: the primary oxidation of these compounds to progesterone and the subsequent successive reactions of 17α-hydroxylation and 20α- and 20β-reduction. The results widen the possibilities of enzymatic and chemical modifications of steroids.