info:eu-repo/semantics/article
Novel pteridine alkaloids from the sponge Clathria sp.
Fecha
2002-05Registro en:
Zuleta, Ignacio A.; Vitelli, María Laura; Baggio, Ricardo Fortunato; Garland, María Teresa; Seldes, Alicia M.; et al.; Novel pteridine alkaloids from the sponge Clathria sp.; Pergamon-Elsevier Science Ltd; Tetrahedron; 58; 22; 5-2002; 4481-4486
0040-4020
CONICET Digital
CONICET
Autor
Zuleta, Ignacio A.
Vitelli, María Laura
Baggio, Ricardo Fortunato
Garland, María Teresa
Seldes, Alicia M.
Palermo, Jorge Alejandro
Resumen
Three novel pteridine alkaloids, pseudoanchynazines A-C (1-3) have been isolated from the sponge Clathria sp. collected by trawling (-100m) 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.