作者:TATSUO HANEISHI、AKIRA TERAHARA、MAMORU ARAI、TADASHI HATA、CHIHIRO TAMURA
DOI:10.7164/antibiotics.27.393
日期:——
The structure of methylenomycin A was studied physico-chemically and finally established by X-ray crystallographic analysis as 2-methylene-cyclopentane-3-one-4, 5-epoxy4, 5-dimethyl-1-carboxylic acid. The structure of methylenomycin B was also determined by a comparative study of the nuclear magnetic resonance spectra of methylenomycins A and B to be 4, 5-epoxy4, 5-dimethyl-2-methylene-cyclopentane-3-one, which makes it a decarboxylated derivative of methylenomycin A.
对甲enomycin A 的结构进行了物理化学研究,并通过 X 射线晶体分析最终确定其结构为 2-亚甲基环戊烷-3-酮-4,5-环氧-4,5-二甲基-1-羧酸。通过对甲烯霉素 A 和 B 的核磁共振谱进行比较研究,还确定了甲烯霉素 B 的结构为 4,5-环氧-4,5-二甲基-2-亚甲基环戊烷-3-酮,因此它是甲烯霉素 A 的脱羧衍生物。