the examined substrates were transformed, mainly by 7α-hydroxylation. Studies carried out with M. silvaticus demonstrated the versatility of this organism in introducing hydroxyl groups at the 7α-, 9α-, 11α-, and 14α-positions in 3-ol-5-ene steroids. The relationships between the substrate structures and hydroxylated positions are also discussed.
摘要 研究了 Mucor silvaticus 对 C-16 或/和 C-17 处具有不同取代基的四种 3β-羟基-5-en-类
固醇的
生物转化。通过 IR、MS、1H NMR、13C NMR 和 2-D NMR 对代谢物进行表征。所有检查的底物都被转化,主要是通过 7α-羟基化。对 M. silvaticus 进行的研究证明了这种
生物在 3-ol-5-ene 类
固醇的 7α-、9α-、11α-和 14α-位引入羟基的多功能性。还讨论了底物结构和羟基化位置之间的关系。