Study on coumarins of Trigonostemon lutescens / 中草药
Chinese Traditional and Herbal Drugs
;
(24): 5751-5755, 2018.
Artículo
en Chino
| WPRIM
| ID: wpr-851468
ABSTRACT
Objective To study the chemical constituents in 95% ethanol aqueous extract of Trigonostemon lutescens. Methods The open silica gel, MCI, Sephadex LH-20 column chromatography, and the semi-preparative HPLC were used to isolate and purify the chemical constituents from the EtOAc fraction of T. lutescens. The structures of the isolates were elucidated by their physiochemical properties, NMR, and MS spectroscopic data, as well as comparison with literature data. Results Eleven compounds were isolated from the EtOAc fraction of the 95% aqueous EtOH extract of T. lutescens, and their structures were identified as seven coumarins, auraptenol (1), meranzin hydrate (2), xanthotoxin (3), bergapten (4), isoimpinellin (5), alloisoimperatorin (6), and isodemethylfuropinarine (7); Two phenylalanine glycosides, 3,4-dihydroxy allylbenzene-4-O-β-D-glucopyranoside (8) and 1-O-β-D-glucopyranosyl-4- allylbenzene (9); One phenylethanol, 1-(2-ethylphenyl)-1,2-ethanediol (10); One alkaloid, 8-hydroxy-3-methoxy-5H-pyrido [2,1-c] pyrazin-5-one (11). Conclusion All these compounds are isolated from the genus Trigonostemon for the first time.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
Chinese Traditional and Herbal Drugs
Año:
2018
Tipo del documento:
Artículo
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