Ambewelamides A and B, antineoplastic epidithiapiperazinediones isolated from the lichen Usnea sp.

[摘要] Two potently cytotoxic epidithiapiperazinediones, ambewelamides A (1) and B (2), have been isolated from the lichen Usnea sp. collected in Sri Lanka. The structures were determined by a combination of X-ray crystallographic and spectroscopic analyses. (C) 1998 Elsevier Science Ltd. All rights reserved.

[发布日期] 1998-12-24