Novel pteridine alkaloids from the sponge Clathria sp.

TETRAHEDRON

卷:58

Article

Zuleta, IA ; Vitelli, ML ; Baggio, R ; Garland, MT ; Seldes, AM ; Palermo, JA

关键词: alkaloids;    Clathria sp;    pteridine;    marine natural products;    sponges;   

DOI  :  10.1016/S0040-4020(02)00392-7

来源: Elsevier

【 摘 要 】

Three novel pteridine alkaloids, pseudoanchynazines A-C (1-3) have been isolated from the sponge Clathria sp, collected by trawling (- 100 m) in a commercial clam fishery near the coasts of Rio Negro, Argentina, and their structures determined by a combination of chemical and spectroscopic techniques, with emphasis in 2D NMR and tandem mass spectrometry, Compounds 1-3 have two pteridine units and a tryptophan core with a methyl carbamate substituent. (C) 2002 Published by Elsevier Science Ltd.

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