A HOPANE TRITERPENOID FROM THE MYCELIUM OF Isaria japonica IN VIETNAM

Nguyen Ngoc Tuan, Tran Thi Kim Anh, Ping-Chung Kuo, Tran Dinh Thang

Abstract


A hopane triterpenoid (11b, 22-dihydroxyhopane) was isolated from the methanol extract of the mycelium of Isaria japonica in Vietnam. The structure of this compound was elucidated using a combination of 1D and 2D NMR techniques (1H-, 13C-NMR, COSY, HSQC and HMBC). In the study, we reported the comprehensive 1H- and 13C-NMR spectral data of 11b, 22-dihydroxyhopane for the first time.


Keywords


Isaria japonica, triterpenoid, 11, 22-dihydroxyhopane, NMR technique, mass spectrometry.

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Published by Vietnam Academy of Science and Technology