Calyciphyllines A and B, two novel hexacyclic alkaloids from Daphniphyllum calycinum.
[structure: see text] Two types of Daphniphyllum alkaloids with unprecedented fused-hexacyclic ring systems, calyciphyllines A (1) and B (2), have been isolated from the leaves of Daphniphyllum calycinum (Daphniphyllaceae), and the structures and relative stereochemistry were elucidated on the basis of spectroscopic data.
Morita
Hiroshi
H
Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Kobayashi
Jun'ichi
J
D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*; D008958:Models, Molecular; D018515:Plant Leaves / Q000737:chemistry; D011083:Polycyclic Compounds / Q000737:chemistry / Q000302:isolation & purification*; D013237:Stereoisomerism
D011083:Polycyclic Compounds; C479143:calyciphylline A; C479142:calyciphylline B