Cuevaenes C–E: Three new triene carboxylic derivatives from Streptomyces sp. LZ35ΔgdmAI

Autor: Jing-Jing Deng, Chun-Hua Lu, Yao-Yao Li, Shan-Ren Li, Yue-Mao Shen
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 858-862 (2014)
Druh dokumentu: article
ISSN: 1860-5397
DOI: 10.3762/bjoc.10.82
Popis: Two pairs of geometrical isomers – cuevaenes A (1) and C (3) as well as cuevaenes D (4) and E (5) – and cuevaene B (2) were isolated from gdmAI-disrupted Streptomyces sp. LZ35. The constitution of cuevaene C (3) was found to be identical to cuevaene A (1) by means of NMR spectroscopy and high resolution mass spectrometry. However, the relative configurations of the triene side chain moieties were determined to be different. It was established on the basis of spectroscopic data that cuevaenes D (4) and E (5) are amides and geometrical isomers. Cuevaenes A–C (1–3) displayed moderate activity against Gram-positive bacteria (e.g., Bacillus subtilis strain ATCC 11060) and modest activity against fungi (e.g., Fusarium verticillioides strain S68 and Rhizoctonia solani strain GXE4). However, cuevaenes D (4) and E (5) showed no inhibitory activity against any of the tested microbes.
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