Total synthesis and biological evaluation of ustiloxin natural products and two analogs

被引:21
作者
Li, Pixu
Evans, Cory D.
Forbeck, Erin M.
Park, Haengsoon
Bai, Ruoli
Hamel, Ernest
Joullie, M. M. [1 ]
机构
[1] NCI, Toxicol & Pharmacol Branch, Dev Therapeut Program, Div Canc Treatment & Diagnosis,NIH, Ft Detrick, MD 21702 USA
[2] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA
关键词
ustiloxins D and F; tubulin inhibitor; phomopsin; total synthesis; biological evalution; antimitotic agent;
D O I
10.1016/j.bmcl.2006.06.071
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Synthetic investigations of ustiloxin natural products are described. The first total synthesis of ustiloxin F was completed in 15 steps via ethynyl aziridine ring-opening by a phenol derivative. The results of biological tests of synthetic ustiloxins D and F, and two analogs, O-Me-ustiloxin D and 6-Ile-ustiloxin, demonstrated that the free hydroxyl group ortho to the ether linkage is critical for activity and variations at the Val/Ala site produce changes in the biological activity suggesting the need for further perturbations at this site to more extensively study the tubulin binding. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4804 / 4807
页数:4
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