将13 C,2 H和18 O标记的乙酸盐和18 O 2气体掺入LP-色素253a的苯并二氢吡喃酮代谢物LL-D253α(1)中,并通过13 C和2 H nmr和质谱分析富集的代谢物表明它是由两条预制的聚酮化合物链形成的;提出了苯并二氢吡喃酮环形成机理的证据,并提出了环丙基中间体以解释在羟乙基侧链中观察到的标记的独特随机性。
Biosynthesis of LL-D253? in Phoma pigmentivora. Incorporation of 13C, 2H, and 18O enriched precursors
作者:C. Rupert McIntyre、Thomas J. Simpson、L. A. Trimble、John C. Vederas
DOI:10.1039/c39840000706
日期:——
incorporation of 13C, 2H, and 18O labelled acetates and 18O2 gas into LL-D253α(1), a chromanonemetabolite of Phomapigmentivora, and analyses of the enriched metabolites by 13C and 2H n.m.r. and mass spectroscopy indicate its formation from two preformed polyketide chains; evidence for the mechanism of formation of the chromanone ring is presented, and a cyclopropyl intermediate is proposed to account
将13 C,2 H和18 O标记的乙酸盐和18 O 2气体掺入LP-色素253a的苯并二氢吡喃酮代谢物LL-D253α(1)中,并通过13 C和2 H nmr和质谱分析富集的代谢物表明它是由两条预制的聚酮化合物链形成的;提出了苯并二氢吡喃酮环形成机理的证据,并提出了环丙基中间体以解释在羟乙基侧链中观察到的标记的独特随机性。
Chandler, I. Michael; McIntyre, C. Rupert; Simpson, Thomas J., Journal of the Chemical Society. Perkin transactions I, 1992, # 18, p. 2285 - 2294
作者:Chandler, I. Michael、McIntyre, C. Rupert、Simpson, Thomas J.