Three new triterpenoids containing four-membered ring from the fruiting body of Ganoderma sinense.
Methyl ganosinensate A (1), ganosinensic acid A (1a), and ganosinensic acid B (2), three new triterpenoids with an unusual four-membered ring skeleton produced by a bond across C-1 to C-11, were isolated from the fruiting body of Ganoderma sinense . Their structures were established on the basis of extensive spectroscopic methods, including 1D and 2D NMR techniques, and methyl ganosinensate A was confirmed by X-ray crystallographic analysis.
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, People's Republic of China.
Cui-Fang
CF
Wang
Jie-Qing
JQ
Liu
Yu-Xin
YX
Yan
Jian-Chao
JC
Chen
Yang
Y
Lu
Yong-Hui
YH
Guo
Ming-Hua
MH
Qiu
D048690:Fruiting Bodies, Fungal / Q000737:chemistry*; D032902:Ganoderma / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification*
D014315:Triterpenes