ICYTAC   23898
INSTITUTO DE CIENCIA Y TECNOLOGIA DE ALIMENTOS CORDOBA
Unidad Ejecutora - UE
artículos
Título:
New Alkaloids from Hippeastrum papilio (Ravenna) Van Scheepen
Autor/es:
DE ANDRADE, J.P.; TALLINI, L.R.; NAIR, J.J.; GUO, Y.; TORRAS-CLAVERIA, L.; PIGNI, N.B.; VILADOMAT, F.; DE SOUZA BORGES, W.; BASTIDA, J.; ZUANAZZI, J.A.S.
Revista:
HELVETICA CHIMICA ACTA
Editorial:
WILEY-V C H VERLAG GMBH
Referencias:
Lugar: Weinheim; Año: 2016 vol. 99 p. 143 - 147
ISSN:
0018-019X
Resumen:
A new phytochemical study of the indigenous Brazilian species Hippeastrum papilio is reported herein. Three novel Amaryllidaceae alkaloids were isolated, including hippapiline (1), papiline (2), and 3-O-demethyl-3-O-(3-hydroxybutanoyl)haemanthamine (3). Their structures were determined by physical and spectroscopic methods. In addition, the known alkaloids, haemanthamine (4), galanthamine (5), narwedine (6), 11β-hydroxygalanthamine (7), apogalanthamine (8), and 9-O-demethyllycosinine B (9) were identified. The unusual cis-B/C-ring fusion for the new homolycorine representative hippapiline was ratified by NMR and CD spectroscopy.