Celamonols A–D, four triterpenoid and catechin conjugates with immunosuppressive activities from the stems of Celastrus monospermus

Literature Information

Publication Date 2019-10-10
DOI 10.1039/C9QO00974D
Impact Factor 5.281
Authors

Yi-Ming Li, Wei-Liang Zhu, Wei-Min Zhao


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Abstract

Celamonols A–D (1–4), featuring an unusual pattern of conjunction between a 24,29-dinorfriedelane-type triterpenoid and a catechin, were isolated from the stems of Celastrus monospermus. Their structures were elucidated by extensive spectroscopic analyses, modified Mosher's method, and ECD calculations. Compounds 1 and 4 exhibited moderate activities against the proliferation of B lymphocytes with IC50 values of 1.46 and 1.35 μM, respectively.

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