Study on triterpenoids and their glycosides chemical constituents of Camellia sinensis / 中草药
Chinese Traditional and Herbal Drugs
;
(24): 1990-1994, 2018.
Artículo
en Chino
| WPRIM
| ID: wpr-851989
ABSTRACT
Objective To investigate the chemical constituents from the leaf of Camellia sinensis. Methods The chemical constituents were isolated and purified by repeated silica gel column chromatography, Sephadex LH-20 gel column chromatography, ODS column chromatography, high pressure flash chromatography and semi-preparative HPLC, and their structures were elucidated on the basis of physico-chemical constants and spectral analysis. Results Nine compounds were separated from C. sinensis, among them, four compounds were identified as triterpenoids and named as 21β-hydroxyl pomolic acid (1), pomonic acid (2), pomolic acid (3), and ursolic acid (4); The other five compounds were idetified as triterpenoid saponins and named as 3-O-α-L-arabinopyranosyl pomolic acid (5), 3β-[(α-L-arabinopyranosyl)oxy]-urs-12,19 (20)-dien-28-oic acid (6), oleanolic acid-3-O-α-L-arabinopyranoside (7), 3β-[(α-L-arabinopyranosyl) oxy]-urs-12,18-dien-28-oic acid (8), and 20-epi-urs-12,18-dien-28-oic acid 3β-O-α-L-arabinopyranoside (9). Conclusion Compound 1 is a new compound, compounds 2, 3, 5-9 are obtained from this genus 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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