Investigation of the importance of the C-2 and C-13 oxygen functions in the transformation of stemodin analogues by Rhizopus oryzae ATCC 11145
作者:G MARTIN
DOI:10.1016/j.phytochem.2004.05.016
日期:2004.8
Incubation of 2alpha,13(R)-dihydroxystemodane (3) with Rhizopus oryzae ATCC 11145 gave 2alpha,7beta,13(R)-trihydroxystemodane (11) while biotransformation of 13(R)-hydroxystemodan-2-one (5) yielded 6alpha,13(R)-dihydroxystemodan-2-one (12) and 7beta,13(R)-dihydroxystemodan-2-one (13). Bioconversion of 2beta,13(R)-dihydroxystemodane (7) with Rhizopus afforded 2beta,7,13(R)-trihydroxystemodane (14). The results complement data from our previous work and provide more information about the effect of functional groups of stemodane substrates on the site of hydroxylation. (C) 2004 Elsevier Ltd. All rights reserved.