Alkaloids from the twigs of Daphniphyllum calycinum.
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.
Zhang
Chuan-Rui
CR
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.
Yang
Sheng-Ping
SP
Yue
Jian-Min
JM
D000470:Alkaloids / Q000737:chemistry; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D006576:Heterocyclic Compounds, 4 or More Rings / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D031995:Saxifragaceae / Q000737:chemistry*
D000470:Alkaloids; D004365:Drugs, Chinese Herbal; D006576:Heterocyclic Compounds, 4 or More Rings