A new isopimarane-type diterpene and a new natural atisane-type diterpene from Excoecaria agallocha.
From the woods of Excoecaria agallocha, a new isopimarane-type diterpene, 3alpha,11beta-dihydroxy-ent-isopimara-8(14),15-dien-2-one and a new natural atisane-type diterpene, 16beta-hydroxy-ent-atisan-3-one were isolated together with three known compounds, ribenone, ent-labda-8(17),13E-diene-3beta,15-diol, and ent-3beta-hydroxybeyer-15-ene-2,12-dione. Their structures were determined by spectral data and x-ray crystallography evidence.
Kang
Jie
J
Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
Chen
Ruo-Yun
RY
Yu
De-Quan
DQ
D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D019665:Euphorbiaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D014961:X-Ray Diffraction
C507484:16beta-hydroxy-ent-atisan-3-one; C507483:3alpha,11beta-dihydroxy-ent-isopimara-8(14),15-dien-2-one; D004224:Diterpenes