A detailed analysis of the secondary metabolite pattern produced by Streptomyces griseoviridis (strain FH-S 1832) using a chemical screening method resulted in the detection, isolation and structure elucidation of new 14-membered lactones of the cineromycin B-type [dehydrocineromycin B (5), oxycineromycin B (7), and 2, 3-dihydrocineromycin B (8)], as well as new γ-lactones related to nigrosporalactone and 4, 5-dihydroxy-octa-2, 6-dienoic acid esters named musacins A to F (10, 13-15, 17, 18 and 21). The constitution of these metabolites were deduced from spectroscopic data as well as chemical transformations. The configuration of musacin D (10) was determined by derivatization with chiral acids (Helmchen's method).
利用化学筛选方法对 Griseoviridis 链霉菌(菌株 FH-S 1832)产生的次级代谢物模式进行了详细分析,结果发现、分离并阐明了新的 14 元内酯类辛诺霉素 B 型[脱氢辛诺霉素 B (5)、氧霉素 B (7) 和 2,3-二氢霉素 B (8)],以及与 nigrosporalactone 和 4,5-二羟基-辛-2,6-二烯酸酯有关的新γ-内酯,命名为蕈毒素 A 至 F(10、13-15、17、18 和 21)。这些代谢物的组成是通过光谱数据和化学变化推断出来的。麝香草苷 D(10)的构型是通过手性酸衍生法(Helmchen 法)确定的。