| Literature DB >> 18558746 |
Xiao-chi Ma1, Xiu-lan Xin, Ke-xin Liu, Jian Han, De-an Guo.
Abstract
Microbial transformation of a cytotoxic bufadienolide, cinobufagin (1), was performed by Syncephalastrum racemosum. The six metabolites obtained were identified as 7beta-hydroxycinobufagin ( 2), 12beta-hydroxycinobufagin (3), cinobufotalin (4), 5,12beta-dihydroxycinobufagin (5), 4beta,11alpha-dihydroxycinobufagin (6), and 4beta,12alpha-dihydroxycinobufagin (7), respectively, on the basis of spectroscopic studies. Metabolites 2 and 5-7 were characterized as new compounds, and 2-7 proved to be cytotoxic against Bel-7402 human hepatoma cells.Entities:
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Year: 2008 PMID： 18558746 DOI： 10.1021/np800210a
Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050