Alstoniaphyllines A-C, unusual nitrogenous derivatives from the bark of Alstonia macrophylla

Chemical investigation of an alkaloidal extract of Alstonia macrophylla bark led to the isolation and identification of two new nitrogenous derivatives, alstoniaphyllines A (1) and B (2), a new indole alkaloid, alstoniaphylline C (4), and eight known alkaloids (3, 5-11). Alstonisine (9) exhibited an...

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Bibliographic Details
Main Authors: Cheenpracha S., Ritthiwigrom T., Laphookhieo S.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-84876930059&partnerID=40&md5=6bb55324c28f2cae48738bbf7b4415ad
http://cmuir.cmu.ac.th/handle/6653943832/7047
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Institution: Chiang Mai University
Language: English
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Summary:Chemical investigation of an alkaloidal extract of Alstonia macrophylla bark led to the isolation and identification of two new nitrogenous derivatives, alstoniaphyllines A (1) and B (2), a new indole alkaloid, alstoniaphylline C (4), and eight known alkaloids (3, 5-11). Alstonisine (9) exhibited antiplasmodial activity against Plasmodium falciparum, with an IC50 of 7.6 μM. © 2013 The American Chemical Society and American Society of Pharmacognosy.