Microbial transformation of silybin by Trichoderma koningii
作者:Hyun Jung Kim、Hae-Suk Park、Ik-Soo Lee
DOI:10.1016/j.bmcl.2005.11.022
日期:2006.2
Microbial transformation of silybin A (1) and silybin B (2), the major hepatoprotective flavonolignan diastereomers from the fruits of Silybum marianum, with the culture broth of Trichoderma koningii gave two pairs of glucosylated derivatives. Their structures were identified as silybin A 3-O-beta-D-glucopyranoside (3), silybin A 7-O-beta-D-glucopyranoside (4), silybin B 3-O-beta-D-glucopyranoside (5) and silybin B 7-O-beta-D-glucopyrano side (6) by spectroscopic methods. (c) 2005 Elsevier Ltd. All rights reserved.