Lanostane-type triterpenoids from Diospyros discolor.
Four new lanostane-type triterpenes, 24-ethyl-3beta-methoxylanost-9(11)-en-25-ol (1), 3beta-methoxy-24-methylenelanost-9(11)-en-25-ol (2), 3beta-methoxy-25-methyl-24-methylenelanost-9(11)-en-21-ol (3) and 3beta-methoxy-24-methyllanosta-9(11),25-dien-24-ol (4) together with three known triterpenes, betulinaldehyde, betulinic acid methyl ester, and ursaldehyde have been isolated from the methanol extract of the twigs of Diospyros discolor. The structures of those new compounds were elucidated by spectroscopic methods.
Chen
Chiy-Rong
CR
Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan.
Cheng
Chao-Wen
CW
Pan
Min-Hsiung
MH
Liao
Yun-Wen
YW
Tzeng
Chih-Ying
CY
Chang
Chi-I
CI
D029788:Diospyros / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D014315:Triterpenes