Indoloditerpenes from an algicolous isolate of Aspergillus oryzae

Autor: Qing Mei Zhu, Ming Feng Qiao, Qin Zhao Xue, Xiang-Hong Liu, Ke Li, Nai-Yun Ji
Rok vydání: 2010
Předmět:
Zdroj: Bioorganicmedicinal chemistry letters. 20(19)
ISSN: 1464-3405
Popis: Two new indoloditerpene derivatives asporyzin A (1) and asporyzin B (2), one new indoloditerpene asporyzin C (3), and three known related indoloditerpenes JBIR-03 (4), emindole SB (5), and emeniveol (6) were isolated from an endophytic fungus Aspergillus oryzae, isolated from the marine red alga Heterosiphonia japonica. Their structures were unambiguously established by spectroscopic techniques. In addition, all the isolates were evaluated preliminarily for insecticidal and antimicrobial activities in order to probe into their chemical defensive function. Compound 4 was more active against brine shrimp than the others, and 3 possessed potent activity against Escherichia coli.
Databáze: OpenAIRE