Lanostane-Type Triterpenoids from Diospyros discolor

Chiy-Rong Chen; Chao-Wen Cheng; Min-Hsiung Pan; Yun-Wen Liao; Chih-Ying Tzeng; Chi-I Chang

doi:10.1248/cpb.55.908

Notes

Lanostane-Type Triterpenoids from Diospyros discolor

Chiy-Rong Chen, Chao-Wen Cheng, Min-Hsiung Pan, Yun-Wen Liao, Chih-Ying Tzeng, Chi-I Chang

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Keywords: Diospyros discolor, triterpene, 24-ethyl-3β-methoxylanost-9(11)-en-25-ol, 3β-methoxy-24-methylenelanost-9(11)-en-25-ol, 3β-methoxy-25-methyl-24-methylenelanost-9(11)-en-21-ol, 3β-methoxy-24-methyllanosta-9(11),25-dien-24-ol

JOURNAL FREE ACCESS

2007 Volume 55 Issue 6 Pages 908-911

DOI https://doi.org/10.1248/cpb.55.908

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Abstract

Four new lanostane-type triterpenes, 24-ethyl-3β-methoxylanost-9(11)-en-25-ol (1), 3β-methoxy-24-methylenelanost-9(11)-en-25-ol (2), 3β-methoxy-25-methyl-24-methylenelanost-9(11)-en-21-ol (3) and 3β-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.

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