Antineoplastic Agents. 570. Isolation and Structure Elucidation of Bacillistatins 1 and 2 from a Marine Bacillus silvestris

Autor: Jean-Charles Chapuis, Venugopal J. R. V. Mukku, Robin K. Pettit, Delbert L. Herald, John Hamblin, Fiona Hogan, John C. Knight, Michael J. Dodson, George R. Pettit
Rok vydání: 2009
Předmět:
Zdroj: Journal of Natural Products. 72:366-371
ISSN: 1520-6025
0163-3864
DOI: 10.1021/np800603u
Popis: Two new cyclodepsipeptides designated bacillistatins 1 (1) and 2 (2) have been isolated from cultures of a sample of Bacillus silvestris that was obtained from a Pacific Ocean (southern Chile) crab. Each 12-unit cyclodepsipeptide strongly inhibited growth of a human cancer cell line panel, with GI(50)'s of 10(-4)-10(-5) microg/mL, and each compound was active against antibiotic-resistant Streptococcus pneumoniae. The structures were elucidated by a combination of X-ray diffraction and mass and 2D NMR spectroscopic analyses, together with chemical degradation.
Databáze: OpenAIRE