Two new compounds from a marine-derived Streptomyces sp.

Two new long-chain unsaturated compounds, (2E, 6E)-10-methoxy-3,7-dimethyl-10-oxodeca-2,6-dienoic acid (1) and (2E, 6E)-3,7,11-trimethyldodeca-2,6-dienedioic acid (2), together with seven known compounds were isolated from a marine-derivedStreptomycessp. Their structures were determined by spectroscopic methods, including 2D NMR techniques. Compounds1and2were investigated for their antibacterial activities. [ABSTRACT FROM PUBLISHER]