Artículo

1H and 13C NMR study of copteroside E derivatives

Cerda García Rojas, Carlos M.; Zamorano, Graciela; Chávez Oribe, María Isabel; Catalan, Cesar Atilio NazarenoIcon ; Joseph Nathan, Pedro
Fecha de publicación: 07/2000
Editorial: John Wiley & Sons Ltd
Revista: Magnetic Resonance in Chemistry
ISSN: 0749-1581
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

The triterpenoid saponin copteroside E (1) was isolated from the flowers and leaves of Verbesina suncho. Detailed 1H and 13C NMR assignment of its acetyl derivatives 2 and 3 was achieved by 2D NMR techniques including COSY, TOCSY, NOESY, HMQC and HMBC. The presence of a glucuronolactone moiety in 2 is supported by the calculated vs observed 1H–1H coupling constants. Molecular mechanics calculations on 1 were useful for understanding the formation of glucuronolactone 2 and decaacetate 3.
 
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/52925
DOI: https://doi.org/10.1002/1097-458X(200007)38:7<494::AID-MRC668>3.0.CO;2-C
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/1097-458X%28200007%2938%3A7%3C49
Colecciones
Articulos(INQUINOA)
Articulos de INST.DE QUIMICA DEL NOROESTE
Citación
Cerda García Rojas, Carlos M.; Zamorano, Graciela; Chávez Oribe, María Isabel; Catalan, Cesar Atilio Nazareno; Joseph Nathan, Pedro; 1H and 13C NMR study of copteroside E derivatives; John Wiley & Sons Ltd; Magnetic Resonance in Chemistry; 38; 7; 7-2000; 494-499
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