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Alkaloids from the twigs of Daphniphyllum calycinum
Authors:Zhang Chuan-Rui  Yang Sheng-Ping  Yue Jian-Min
Affiliation:State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, People's Republic of China.
Abstract:Twelve new alkaloids, caldaphnidines G-R (1-12), along with 24 known ones, were isolated from the twigs of Daphniphyllum calycinum. Their structures were elucidated by spectroscopic methods, especially two-dimensional NMR techniques.
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