Chemical Constituents of the Rhizomes of Tetrastigma hemsleyanum

Characterization of UV-Sensitive Marker Constituents of Polygala Root for TLC: Applications in Quality Control of Single Crude Drug Extract Preparations

“…The residual water extract was subjected to suc-cessive chromatographies on Diaion HP-20, YMC GEL ODS-AQ, and Chromatorex ODS with aqueous MeOH and preparative TLC to afford 23 compounds including two new glycosides designated as polygalaonjisides A (1) and B (2). The known compounds were identified as 4-hydroxybenzoic acid (3), 19) monordicophenoide A (4), 20) 4-hydroxy-3-methoxybenzoic acid (vanillic acid) (5), 19) hemsleyanumoide (6), 21) sibiricose A3 (7), 22) 3,5-dimethoxy-4-hydroxybenzoic acid (syringic acid) (8), 23) sibiricose A5 (9), 22) sibiricose A6 (10), 22) trans-ferulic acid (11), 23) sibiricose A1 (12), 22) glomeratose A (13), 24) sibiricoxanthone B (14), 11) tenuifoliside B (15), 14) polygalaxanthone XI (16), 11) polygalaxanthone III (17), 9) 3,6′-di-O-sinapoylsucrose (18), 25) tenuifoliside A (19), 14) 1′-cinnamoyl-3′-benzoyl-(2-O-β-glucosyl)-sucrose (20), 16) 6-(4‴-methoxybenzoyl)-3′-(3″,4″,5″-trimethoxycinnamoyl)-sucrose (21), 16) 1,3,7-trihydroxyxanthone (22), 26) and tenuifoliose J (23) 15) (Fig. 1) .0] which are characteristic of syringic acid (4-hydroxy-3,5dimethoxybenzoic acid) nucleus.…”

CHEMICAL CONSTITUENTS OF Bischofia javanica

“…The chemical structure of 2 was assigned with the aid of HSQC (Table 1) Figure 1. Compound 2 were previously isolated from various plant such as Tetrastigma hemsleyanum [13], Nanophyton erinaceum [14] and Laurus nobilis [12]. It was reported to have antioxidant and hepatoprotective effects [15].…”

“…The 1 H-NMR (400 MHz) and 13 C-NMR (100 MHz) spectra were recorded on Agilent 400-MR-NMR spectrometer and TMS was used as an internal standard. Column chromatography was performed using silica gel (Kieselgel 60, 70 -230 mesh and 230 -400 mesh, Merck, Whitehouse Station, NJ) or RP-18 resins (30 -50 µm, Fuji silysia Chemical Ltd.).…”

The Phytochemistry, Pharmacology, and Quality Control of Tetrastigma hemsleyanum Diels & Gilg in China: A Review

“…In addition, the study has found that the content of total flavonoids in leaves of TDG ranges from 13.38 to 28.67 mg· g -1 ( Fan et al., 2017 ). More than 30 flavonoids isolated and identified from TDG, including kaempferol-7-O-α-L-rhamnopyranosyl-3-O-β-D-glucopyranoside (1), apigenin-6-C-α-L-arabinopyranosyl-(1-4)-α-L-rhamnopyranoside (2), and apigenin-8-C-α-L-arabinopyranosyl-(1-4)-α-L-rhamnopyranoside (3), apigenin-6, 8-di-C-β-D-glucopyranoside (4), kaempferol (5), quercetin (6), kaempferol 3-neohesperidoside (7), rhamnocitrin (8), kaempferol-7-O-α-L-rhamnopyranoside (9), aromadendrin (10), kaempferol-3-O-β-D-glucopyranoside (11), isoquercetin (12), nicotifiorin (kaempferol-3-o-rutoside, 13), robinin (14), rutin (15), astragaloside (16), catechin (17), L-epicatechin (18), epigallocatechin (19), procyanidin B2 (20), procyanidin B1 (21), apigenin (22), quercitrin (23), kaempferitrin (24), apigenin-6-C-β-D-glucopyranoside (Isovitexin, 25), apigenin-8-C-α-L-rhamnopyranosyl-(1-2)-β-D-glucopyranoside (Vitexin-2-O-rhamnoside, 26), apigenin-8-C-β-D-glucopyranoside (Vitexin, 27), apigenin-8-C-β-D-glucopyranoside-(1-4)-β-D-glucopyranoside (Vitexin-4’’-O-glucoside, 28), orientin (29), isoorientin (30), malvidin-3-glucoside (31), myricitrin (32), baohuosid I (33), and isoschaftoside (34) ( Liu, 2000 ; Liu et al., 2002 ; Li et al., 2003 ; Guo, 2013 ; Zeng, 2013 ; Fan et al., 2014 ; Fu et al., 2015 ; Lin et al., 2015 ; Liu et al., 2018 ). The structure of some flavonoids is shown in Figure 2 , with the names of all constituents being listed in Table 1 .…”