Carbon‐13 NMR spectra of hydroxylated bile acid stereoisomers
Carbon‐13 NMR spectra of hydroxylated bile acid stereoisomers
复制标题
羟基化胆汁酸立体异构体的碳13 NMR谱
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
F. Chang
中科院分区：
文献类型：
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作者：
T. Iida;T. Tamura;Taro Matsumoto;F. Chang
碳-13核磁共振信号被分配给26个理论上可能的甲基5β-胆酸酯异构体，它们在核的C-3， C-7和/或C-12位置上有一到三个羟基。讨论了取代基对13C核磁共振屏蔽数据的影响，这些屏蔽数据用于表征羟基的位置和构型。
Carbon-13 NMR signals were assigned for the complete set of the 26 theoretically possible isomers of methyl 5β-cholanates having one to three hydroxy groups at positions C-3, C-7 and/or C-12 in the nucleus. Substituent effects on the 13C NMR shielding data serving to characterize the position and configuration of the hydroxy groups are discussed.