Two novel lanostane triterpenoids from Ganoderma sinense.
Two novel lanostane-type triterpenes, Ganolactone B and Ganoderiol A triacetate, were isolated from the fruiting bodies of G. sinense, together with six known compounds. The structures of the two new triterpenes were determined as 3beta,7beta- dihydroxy-11,15-dioxo-lanosta-8-en-24-->20 lactone (1) and 3beta,24,26-triacetoxy-5alpha-lanosta-7,9(11)-dien-25-ol (2), respectively, by chemical and spectroscopic means.
Qiao
Yin
Y
State Key Laboratory Phytochemistry and Plant Resource in West China, Kunming Institute of Botany, The Chinese Academy of Sciences, Kunming 650204, PR China. qiaoying@gmail.com
Zhang
Xian-min
XM
Qiu
Ming-hua
MH
D032902:Ganoderma / Q000737:chemistry*; D015394:Molecular Structure; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
C524612:3,24,26-triacetoxylanosta-7,9(11)-dien-25-ol; C524611:3,7-dihydroxy-11,15-dioxolanosta-8-en-24-20 lactone; D014315:Triterpenes