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

Chemical constituents of Cycas aenigma

Vincent Antonio S. Ng,  Esperanza Maribel G. Agoo,  Chien-Chang Shen,  Consolacion Y. Ragasa   
Vincent Antonio S. Ng1, Esperanza Maribel G. Agoo2, Chien-Chang Shen3, Consolacion Y. Ragasa1 & 4

1Chemistry Department, De La Salle University 2401 Taft Avenue, Manila 1004, Philippines.

2Biology Department, De La Salle University 2401 Taft Avenue, Manila 1004, Philippines.

3National Research Institute of Chinese Medicine, 155-1, Li-Nong St., Sec. 2, Taipei 112, Taiwan.

4Chemistry Department, De La Salle University Science & Technology Complex Leandro V. Locsin Campus, Binan City, Laguna 4024, Philippines.

Open Access   

Published:  Sep 27, 2015

DOI: 10.7324/JAPS.2015.50906
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Abstract

Chemical investigation of Cycas aenigma, a plant endemic to the Philippines, led to the isolation of a rare neolignan, 2-[2-hydroxy-5-(3-hydroxypropyl)-3-methoxyphenyl]-1-(4-hydroxy-3-methoxyphenyl)propane-1,3-diol (1), pinoresinol (2), and fatty alcohols (3) from the leaflets; and triglycerols (4), and a mixture of β-sitosterol (5a) and stigmasterol (5b) from the petiole and rachis. The structure of 1 was elucidated by extensive 1D and 2D NMR spectroscopy, while those of 2-5b were identified by comparison of their 1H and/or 13C NMR data with literature data.


Keyword:     Cycas lacrimans Cycadaceae pinoresinol fatty alcohols triacylglycerolsβ-sitosterol

Citation:

Vincent Antonio Ng, Esperanza Maribel Agoo, Chien-Chang Shen, Consolacion Y. Ragasa. Chemical constituents of Cycas aenigma. J App Pharm Sci, 2015; 5 (09): 032-036.

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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