New triterpenes from the bark of Canarium asperum

Authors

Consolacion Y. Ragasa, De La Salle University, Manila
Oscar B. Torres, De La Salle University, Manila
Dennis D. Raga, Ateneo de Manila University
Emelina H. Mandia, De La Salle University-Manila
Ming Jaw Don, National Research Institute of Chinese Medicine Taiwan
Chien Chang Shen, National Research Institute of Chinese Medicine Taiwan

College

College of Science

Department/Unit

Chemistry

Document Type

Article

Source Title

Der Pharmacia Lettre

Volume

6

Issue

3

First Page

290

Last Page

294

Publication Date

1-1-2014

Abstract

Chemical investigation of the dichloromethane extract of the resin from the bark of Canarium asperum led to the isolation of a mixture of new triterpene diastereomers, asperol a (1a) and asperol b (1b) in a 3:2 ratio. The structures of 1a and 1b were elucidated by extensive 1D and 2D NMR spectroscopy and confirmed by mass spectrometry. β-amyrin and α-amyrin were also obtained as the major constituents of the resin.

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Recommended Citation

Ragasa, C. Y., Torres, O. B., Raga, D. D., Mandia, E. H., Don, M., & Shen, C. (2014). New triterpenes from the bark of Canarium asperum. Der Pharmacia Lettre, 6 (3), 290-294. Retrieved from https://animorepository.dlsu.edu.ph/faculty_research/1977

Disciplines

Chemistry

Keywords

Canarium--Analysis

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