Research Article | Volume: 5, Issue: 9, September, 2015

Chemical Constituents of Ixora philippinensis Merr.

Consolacion Y. Ragasa Maria Carmen S. Tan Dalton R. Fortin Chien-Chang Shen   

Open Access   

Published:  Sep 27, 2015

DOI: 10.7324/JAPS.2015.50912

Chemical investigations of the dichloromethane extracts of Ixora philippinensis Merr., a plant endemic to the Philippines, led to the isolation of syringaresinol (1), pinoresinol (2), isoscopoletin (3), squalene (4), β-sitosterol (5a), and stigmasterol (5b) from the stems; and 4, 5a, 5b, lupeol (6), and lutein (7) from the leaves. The structures of 1 and 3 were elucidated by extensive 1D and 2D NMR spectroscopy, while those of 2 and 4-7 were identified by comparison of their NMR data with literature data.

Keyword:     Ixora philippinensis Rubiaceae syringaresinol pinoresinol isoscopoletin lupeol squalene lutein β-sitosterol stigmasterol.


Consolacion Ragasa, Maria Carmen Tan, Dalton Fortin, ChienChang Shen. Chemical Constituents of Ixora philippinensis Merr. J App Pharm Sci, 2015; 5 (09): 062-067.

Copyright:The Author(s). This is an open access article distributed under the Creative Commons Attribution Non-Commercial License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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