S. Garai et Sb. Mahato, NOVEL REDUCTION AND HYDROXYLATION PRODUCTS FORMED BY ASPERGILLUS-FUMIGATUS FROM REICHSTEIN SUBSTANCE-S, Steroids, 62(2), 1997, pp. 253-257
Fermentation of Reichstein's Substance S with Aspergillus fumigatus (A
M-21) under aerobic conditions yielded 17 alpha, 21-dihydroxy-5 alpha-
pregn-1-ene-3,20-dione, 17 alpha,20 alpha,21-trihydroxy-5 alpha-pregn-
1-en-3-one, 6 beta,17 alpha,21-trihydroxypregn-4-en-3,20-dione, 15 bet
a,17 alpha,21-trihydroxy-5 alpha-pregnane-3,20-dione, and 15 beta,17 a
lpha,20 alpha,21-tetrahydroxy-5 alpha-pregn-1-en-3-one. Each microbial
metabolite was characterized by spectroscopic methods, C-13 NMR chemi
cal shifts. (C) 1997 by Elsevier Science Inc.