Chemical constituents of ethnic medicine Cynanchum otophyllum / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 101-105, 2016.
Artículo
en Chino
| WPRIM
| ID: wpr-304887
ABSTRACT
In order to isolate and purify the reference compounds and improve the quality standard of ethnic medicine of Radix of Cynanchum otophyllum, the ethanol extracts were isolated by column chromatography onsilica gel, C₁₈ reverse-phase silica gel, and semi-preparative HPLC. Twelve compounds were isolated and their structures were elucidated as 2,4-dihydroxy-6-methoxyphenylethanone(1), 4,6-dihydroxy-2-methoxyphenylethanone(2), p-hydroxyacetophenone(3), baishouwubenzophenone(4), 2,4-dihydroxyacetophenone(5), 2,5-dihydroxyacetophenone(6), otophylloside A(7),otophylloside B(8), caudatin-3-O-β-D-cymaropyranosyl-(1→4)-β-D-digitoxopyranoside(9),caudatin-3-O-β-D-glucopyranosyl-(1→4)-β-D-oleandropyranosyl-(1→4)-β-D-cymaropyranosyl-(1→4)-β-D-digitoxopyranoside(10),qingyangshengenin-3-O-β-D-oleandropyranosyl-(1→4)-β-D-cymaropyranoside(11),caudatin-3-O-β-D-oleandropyranosyl-(1→4)-β-D-cymaropyranosyl-(1→4)-β-D-cymaropyranoside(12) on the basis of spectral analysis. Compounds 1 and 2 were isolated from the genus Cynanchum for the first time, and compounds 3-4, 9-12 were obtained from this plant for the first time.These compounds are main active components of Radix of C.otophyllum and can be used as reference substances for the quality control of this ethnic medicine.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Idioma:
Chino
Revista:
China Journal of Chinese Materia Medica
Año:
2016
Tipo del documento:
Artículo
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