Lanostanoids of Amentotaxus formosana.
Three lanostanoids, 3beta-methoxycycloartan-24(24(1))-ene (1), 3beta,23beta-dimethoxycycloartan-24(24(1))-ene (2), and 3beta,23beta-dimethoxy-5alpha-lanosta-24(24(1))-ene (3), were isolated from the leaves of Amentotaxus formosana. The structures of new compounds 2 and 3 were determined by NMR and MS studies, and the structure of 3 was further confirmed by X-ray crystallographic analysis.
Su
Huey-Jen
HJ
School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan 807, Republic of China.
Day
Shiow-Hwa
SH
Yang
Sheng-Zehn
SZ
Chiang
Michael Y
MY
Lin
Chun-Nan
CN
D018360:Crystallography, X-Ray; D007810:Lanosterol / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D013058:Mass Spectrometry; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013624:Taiwan
C449851:3beta,23beta-dimethoxy-5alpha-lanosta-24(24(1))-ene; C449850:3beta,23beta-dimethoxycycloartan-24(24(1))-ene; C449849:3beta-methoxycycloartan-24(24(1))-ene; D007810:Lanosterol