Một số flavonoid và dẫn xuất bergenin phân lập từ lá cây cơm nguội đảo Ardisia insularis

Nguyễn Thị Hồng Vân, Trịnh Anh Viên, Phạm Quốc Long, Nguyễn Mạnh Cường, Lưu Tuấn Anh

Abstract


From the leaves of Ardisia insularis, six flavonoids and four bergenin derivatives have been isolated, myricitrin (1), myricetin 3-O-(3″-O-galloyl)-α-L-rhamnopyranoside (2), desmanthine-2 (3), quercetin 3-O-α-L-rhamnopyranoside (4), 3-O-galloylepicatechin (5), 3-O-galloyl-3'-methoxyepicatechin (6), bergenin (7), norbergenin (8), demethoxybergenin (9) and 4-O-galloylbergenin (10). The structure elucidation of these compounds was peformed by spectroscopic data ESI-MS, 1D-NMR (1H-NMR, 13C-NMR, DEPT) and 2D-NMR (HSQC, HMBC, COSY).


Keywords


Ardisia insularis, Myrsinaceae, flavonoid, bergenin derivatives

Full Text:

PDF
Display counter: Abstract : 80 views. PDF : 76 views.