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机构地区:[1]School of Pharmacy, Beijing Medical University, Beijing 100083, PRC [2]Research Laboratory of Natural and Biomimetic Drugs, Beijing Medical University, Beijing 100083, PRC
出 处:《Chinese Science Bulletin》1991年第22期1911-1915,共5页
摘 要:Since the study of the nuclear magnetic resonance (NMR)spectra of a number of sixmembered ring compounds reported by Lemieux et al. in 1958, the chemical shift and coupling constant for H<sub>1</sub> have been used extensively to identify anomeric isomers in carbohydrate compounds. In 1-O-acyl-tetra-O-acetyl-β-O-hexapyranose, the anomeric proton of the
关 键 词:two-dimensional NMR spectrum VIRTUAL LONG-RANGE coupling anomeric ISOMER
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