作者:Braulio M. Fraga、Ricardo Guillermo、Melchor G. Hernández、Marı́a C. Chamy、Juan A. Garbarino
DOI:10.1016/j.tet.2004.06.055
日期:2004.8
The microbiological transformation of 13α,17-dihydroxy-stemodane (2) by the fungus Mucor plumbeus afforded 13α,17,19-trihydroxy-stemodane (3), 3β,13α,17-trihydroxy-stemodane (5), 3-oxo-13α,17-dihydroxy-stemodane (7), 7α,13α,17,19-tetrahydroxy-stemodane (8), 3β,11α,13α,17-tetrahydroxy-stemodane (10), 3β,7α,13α,17-tetrahydroxy-stemodane (12), 3β,8β,13α,17-tetrahydroxy-stemodane (14), 2α,13α,17-trihydroxy-stemodane
Mucor plumbeus真菌对13α,17-二羟基硬脂烷(2)的微生物转化提供了13α,17,19-三羟基硬脂烷(3),3β,13α,17-三羟基硬脂烷(5),3-氧代- 13α,17-二羟基硬脂烷(7),7α,13α,17,19-四羟基硬脂烷(8),3β,11α,13α,17-四羟基硬脂烷(10),3β,7α,13α,17-四羟基-硬脂烷(12),3β,8β,13α,17-四羟基硬脂烷(14),2α,13α,17-三羟基硬脂烷(16),2α,13α,17,19-四羟基硬脂烷(17),2α ,3β,13α,17-四羟基硬脂烷(20)和3β,11β,13α,17-四羟基硬脂烷(22),而13α ,14-二羟基硬脂烷(25)的孵育得到3β,13α,14-三羟基硬脂烷(28),2α,13α,14 -三羟基硬脂烷(29)和13α,14,19-三羟基硬脂烷(30)。在两种温育中均观察到环A在C-