Cytotoxic calanquinone A from Calanthe arisanensis and its first total synthesis
作者:Chia-Lin Lee、Kyoko Nakagawa-Goto、Donglei Yu、Yi-Nan Liu、Kenneth F. Bastow、Susan L. Morris-Natschke、Fang-Rong Chang、Yang-Chang Wu、Kuo-Hsiung Lee
DOI:10.1016/j.bmcl.2008.06.099
日期:2008.8
Calanquinone A (1) was isolated from an EtOAc-soluble extract of Calanthe arisanensis through bioassay-guided fractionation. Its structure was identified by spectroscopic methods. Compound 1 showed potent cytotoxicity (EC(50)<0.5microg/mL) against lung (A549), prostate (PC-3 and DU145), colon (HCT-8), breast (MCF7), nasopharyngeal (KB), and vincristine-resistant nasopharyngeal (KB-VIN) cancer cell