[Antioxidant constituents from Smilax riparia].
By repeated column chromatography, including silica gel, toyopearl HW-40 and preparative HPLC, thirteen compounds (1-13) were isolated and purified from Smilax riparia. On the basis of spectral data analysis, the structures of isolated compounds were elucidated as 5-methoxy-[6]-gingerol (1), dehydroabietic acid (2), pteryxin (3), 2-methylphenyl-1-O-beta-D-glucopyranoside (4), 3,5-dimethoxy-4-hydroxybenzonic acid (5), isovanillin (6), vanillic acid (7), p-hydroxycinnamic acid (8), p-hydroxycinnamic methyl ester (9), p-hydroxybenzaldehyde (10), ferulic acid methyl ester (11), benzoic acid (12) and 5-hydroxy-methyl-2-furalclehyde (13). Compounds 1-4 and 8-12 were isolated from this genus for the first time. All compounds were isolated from this plant for the first time. Compounds 1 and 5-11 showed antioxidant activities on DPPH method.
Tianjin Key Laboratory on Technologies Enabling Development Clinical Therapeutics and Diagnostics, School of Parmaceutical Sciences, Basic Medical Research Center, Tianjin Medical University, Tianjin 300070, China.
Wen
W
Chen
Sheng'an
S
Tang
Nan
N
Qin
Huiyuan
H
Zhai
Hongquan
H
Duan
D000975:Antioxidants / Q000737:chemistry* / Q000302:isolation & purification; D001713:Biphenyl Compounds / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D008516:Medicine, Chinese Traditional; D010851:Picrates / Q000378:metabolism; D010946:Plants, Medicinal / Q000737:chemistry*; D058428:Silica Gel; D032281:Smilax / Q000737:chemistry*
D000975:Antioxidants; D001713:Biphenyl Compounds; D010851:Picrates; D058428:Silica Gel; C004931:1,1-diphenyl-2-picrylhydrazyl