New lanostane-type triterpenoids from Ganoderma applanatum.
Four new lanostane-type triterpenes were isolated from the MeOH extract of the fruiting bodies of Ganoderma applanatum. Their structures were established as 3beta,7beta,20,23xi-tetrahydroxy-11,15-dioxolanosta-8-en-26-oic acid (1), 7beta,20,23xi-trihydroxy-3,11,15-trioxolanosta-8-en-26-oic acid (2), 7beta,23xi-dihydroxy-3,11,15-trioxolanosta-8,20E(22)-dien-26-oic acid (3), and 7beta-hydroxy-3,11,15,23-tetraoxolanosta-8,20E(22)-dien-26-oic acid methyl ester (4), respectively, by extensive spectroscopic analyses.
Natural Products Research Institute and College of Pharmacy, Seoul National University, 28 Yeungun-dong, Chongno-gu, Seoul 110-460, Korea.
Sang Hee
SH
Shim
Jiyoung
J
Ryu
Ju Sun
JS
Kim
Sam Sik
SS
Kang
Yongnan
Y
Xu
Sang Hoon
SH
Jung
Yeon Sil
YS
Lee
Sanghyun
S
Lee
Kuk Hyun
KH
Shin
D002170:Canada; D032902:Ganoderma / Q000737:chemistry*; D007810:Lanosterol / Q000737:chemistry* / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification*
D014315:Triterpenes; D007810:Lanosterol