Abstract:
Thirteen compounds were isolated from the Lycii Cortex by macroporous resin column chromatography, gel column chromatography and semi-preparative high performance liquid chromatography. The structures of the isolated compounds were identified by ultraviolet spectroscopy, infrared spectroscopy, nuclear magnetic resonance spectroscopy and mass spectrometry as solavetivone A (
1), solavetivone B (
2), 9-hydroxy-3-methoxy-6
H-pyrido 1, 2-a pyrazin-6-one (
3), 5, 5′-di(2-ethyl-hexyloxy)-5, 5′-bifuran (
4), bis(2-ethylhexyl) phthalate (
5), scopoletin (
6), periplogenin (
7), 3
β, 5
β-dihydroxy-14-en-card-20(22)-enolide (
8), (7
R, 8
S)-4-hydroxy-3, 5′-dimethoxy-4′, 7-epoxy-8, 3′-neoligna-9, 9′-diol-4-
O-
β-
D-glucopyranosyl-(1→4)-
β-
D-glucopy-ranoside (
9), 2-carbomethoxy 3-prenyl-1, 4-naphtho hydroquinone-1, 4-di-
O-
β-glucoside (
10), 4-hydroxy-3-methoxyphenyl-
β-
D-xylopyranosyl (1→6)-
O-
β-
D-glucopyranoside (
11), syringic acid (
12), vanillic acid (
13). Compounds
1 and
2 were new sesquiterpene glycosides with solavetivone skeleton. Compounds
4,
8-
10 were isolated from Solanaceae for the first time. The bioactive screening results indicate that compounds
1 and
2 do not exhibit inhibitory effects on NO production; however, they demonstrate weak inhibitory activity against
α-glucosidase.