New polyhydroxylated metabolite derived from biotransformation of diosgenin by the white-rot fungus Coriolus versicolor
摘要:
Microbial transformation of diosgenin (1) was carried out with the white-rot fungus, Coriolus versicolor. A new polyhydroxyl metabolite, (25R)-spirost-5-ene-3 beta,7 beta,21-triol (2), was obtained as a result of hydroxylation. Its structure was elucidated on the basis of 1D and 2D NMR as well as HR-ESI-MS spectroscopic analysis. (C) 2009 Jin Ming Gao. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Microbial transformation of diosgenin (3β-hydroxy-5-spirostene) using white-rot fungus Coriolus versicolor afforded four previously unreported polyhydroxylated steroids, 25(R)-spirost-5-en-3β,7α,15α,21-tetraol (5), 25(R)-spirost-5-en-3β,7β,12β,21-tetrol (6), (25R)-spirost-5-en-3β,7α,12β,21-tetraol (7), and (25R)-spirost-5-en-3β,7β,11α,21-tetraol (8), along with three known congeners, 25(R)-spirost-5-en-3β