Complete assignments of 1H and 13C NMR data for rings A,B-seco limonoids from the seed of Aphanamixis polystachya |
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| Authors: | Zhang Huaping Chen Feng Wang Xi Wu Dagang Chen Qing |
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| Institution: | Department of Food Science and Human Nutrition, Clemson University, Clemson, SC 29634, USA. huapinz@Clemson.edu |
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| Abstract: | Seven rings A,B-seco limonoids 1-7 were isolated from the EtOH extract of the seed of Aphanamixis polystachya. Their structures were identified as rohituka-7 (1), dregeana-1 (2), rohituka-15 (3), Tr-B (4), rohituka-3 (5), rohituka-5 (6), and rohituka-14 (7) by MS and NMR spectroscopy. The complete assignment of proton and carbon signals was achieved by 1D and 2D NMR experiments including DEPT, HSQC, 1H--1H COSY, HMBC, and NOESY. |
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| Keywords: | 1H NMR 13C NMR 2D NMR Meliaceae Aphanamixis polystachya limonoid dregeana‐1 rohituka‐3 5 7 14 15 Tr‐B |
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