work, Aspergillus candidus MRC 22634 converted epiandosterone 1 into 10 hydroxylated metabolites. A. candidus has been shown to hydroxylate 1 predominantly at C-11α, C-1α, and C-15β with minor hydroxylations occurring at C-14α and C-7α. Oxidation at C-3, reduction at C-17, and C-3 epimerization of some of the remaining substrate have also been shown. 15β-Hydroxylation and C-3 epimerization of 1 by
摘要 在这项工作中,念珠菌 MRC 22634 将
表雄酮 1 转化为 10 种羟基化代谢物。A. candidus 已显示主要在 C-11α、C-1α 和 C-15β 处羟基化 1,在 C-14α 和 C-7α 处发生少量羟基化。还显示了 C-3 处的氧化、C-17 处的还原和一些剩余底物的 C-3 差向异构化。首次报道了真菌对 1 的 15β-羟基化和 C-3 差向异构化。其中两种代谢物 1α,3α-dihydroxy-5α-androstan-17-one 4 和 15β,17β-dihydroxy-5α-androstan-3-one 7 被鉴定为新化合物。