Two new pyrrolizidine alkaloids from Crotalaria albida |
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| Authors: | Qin-Hu Sun Jun-Jie Yang Xiao-Hui Wei Hong Xu Gui-Xin Chou |
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| Institution: | 1. The MOE Key Laboratory for Standardization of Chinese Medicines and SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai 201203, China;2. Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, China |
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| Abstract: | Two new pyrrolizidine alkaloids, namely, neocroalbidine and neocroalbidinone, were isolated from the herbs of Crotalaria albida. Their structures were established using a combination of NMR spectroscopy and mass spectrometry techniques. The absolute stereochemistry of the two alkaloids presented herein was determined by single-crystal X-ray diffraction analysis. |
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| Keywords: | Neocroalbidine Neocroalbidinone X-ray crystal diffraction |
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