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Cassiaindoline, a New Analgesic and Anti-Infl ammatory Alkaloid from Cassia alata

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Cassiaindoline, a New Analgesic and Anti-Infl ammatory Alkaloid from Cassia alata

Irene M. Villaseñora,* and Arlyn C. Sanchezb

a Institute of Chemistry, University of the Philippines, Diliman,

Quezon City 1101, Philippines. Fax: (63-2)920 54 27. E-mail: irene.villasenor@up.edu.ph

b Natural Sciences Research Institute, University of the Philippines, Diliman, Quezon City 1101, Philippines

* Author for correspondence and reprint requests

Z. Naturforsch. 64 c, 335 – 338 (2009); received December 23, 2008/March 2, 2009

Cassiaindoline is a new dimeric indole alkaloid isolated from Cassia alata L. leaves whose structure was elucidated through spectroscopic analyses. It exhibited analgesic activity at a dosage of 125.0 mg/kg mouse and decreased the number of writhings induced by acetic acid by 49.4%. It also showed a 57.1% anti-infl ammatory activity at a dosage of 75 mg/kg mouse.

Key words: Cassia alata L., Analgesic, Anti-Infl ammatory, Cassiaindoline

NC_5_6_2009.indb 335 22.06.2009 10:02:40

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