Cytotoxic and HIF-1α Inhibitory Compounds from <i>Crossosoma bigelovii</i>
作者:Paul Klausmeyer、Qin Zhou、Dominic A. Scudiero、Badarch Uranchimeg、Giovanni Melillo、John H. Cardellina、Robert H. Shoemaker、Ching-jer Chang、Thomas G. McCloud
DOI:10.1021/np8006342
日期:2009.5.22
Cytotoxicity-guided fractionation of an organic solvent extract of the plant Crossosoma bigelovii led to the discovery of a new strophanthidin glycoside (1) and two new 2-methylchromone glycosides (2 and 3). Also isolated were the known chromones eugenin and noreugenin, the indole alkaloid ajmalicine, the dibenzylbutane lignan secoisolariciresinol, the dibenzylbutyrolactone lignan matairesinol, and the furanone 5-tetradec-5-enyldihydrofuran-2-one. Further investigation into the biological properties of strophanthidin glycosides revealed a connection between inhibition of HIF-1 activation and the glycosylation of the genin. This work is the first published study of the bioactive phytochemicals of the family Crossosomataceae.