Abstract:
From the
n-butanol extract of the leaves of
Callicarpa nudiflora, thirteen compounds were isolated by repeated column chromatography with silica gel,C
18and Sephadex LH-20.Their structures were identified by spectroscopic (
1H,
13C NMR and so on) and chemical methods as luteolin (
1 ),luteolin-7-
O-
β-D-glucopyran-coside (
2 ),apigenin (
3 ),5,7,4′-trihydroxy-3′-methoxyflavone (
4 ),luteolin-3′-
O-
β-D-glucopyranoside (
5 ),apigenin-7-
O-
β-D-glucopyranoside (
6 ),luteolin-7-
O-(6″-trans-caffeoyl)-
β-D-glucopyranoside (
7 ),luteolin-7-
O-(6″-trans-feruloyl)-
β-D-glucopyranoside (
8 ),arjunglucoside I(
9 ),luteolin-7-
O-(6″-
p-coumaryl)-
β-D-glucopyranoside (
10 ),forsythoside B (
11 ),isomartynoside (
12 ),deacylisomartynoside B (
13 ).Among them,compound
11 was isolated from this plant for the first time and compounds
4,7-10,12-13 were isolated from this genus for the first time.