Absolute configuration of the rubiginones and photo-induced oxidation of the C1 hydroxyl of the antibiotics to a ketone
作者:Masahisa Oka、Masataka Konishi、Toshikazu Oki、Mamoru Ohashi
DOI:10.1016/s0040-4039(00)88519-6
日期:1990.1
The absolute stereochemistry of rubiginones A1, A2, B1, B2, C1 and C2 has been established by NMR spectral analysis using the O-methylmandelate method. A facile photoinduced oxidation of rubiginones A1, B1 and C1 to rubiginones A2, B2 and C2, respectively, is discussed in relation to the absolute stereochemistry.
通过使用O-甲基扁桃酸酯方法的NMR光谱分析,建立了茜草酮A 1,A 2,B 1,B 2,C 1和C 2的绝对立体化学。关于绝对立体化学,讨论了将茜草酮A 1,B 1和C 1分别容易地光诱导氧化为茜草酮A 2,B 2和C 2。