Water-soluble constituents from roots of Capparis tenera / 中国中药杂志

<p><b>OBJECTIVE</b>To study the chemical constituents of the roots of Capparis tenera.</p><p><b>METHOD</b>The chemical constituents were isolated and repeatedly purified by kinds of column chromatography and the structures were elucidated by the NMR spectra and physicochemical properties.</p><p><b>RESULT</b>Eight compounds were isolated and identified as erigeside C (1), glucosuringic acid (2), vanillic acid 4-O-beta-D-glucoside (3-methoxy 4-glucosyl-benzoic acid) (3), 4-O-beta-D-glucopyranosylbenzoate (4), 3', 5'-dimethoxy- 4-O-beta-D-glucopyranosyl-cinnamic acid (5), tachioside (6), 2, 3-dihydroxy-1-(4-hydroxyl-3, 5-dimethoxyphenyl)-1-propanone (7) and acacetin 7-rutinoside (8).</p><p><b>CONCLUSION</b>Compounds 1-8 were all isolated from this plant for the first time and the compound 8 was isolated from this gene for the first time.</p>

New dimeric phthalide derivative from Angelica sinensis / 药学学报

<p><b>AIM</b>To study the chemical constituents of the roots of Angelica sinensis.</p><p><b>METHODS</b>Silica gel column chromatography was used to separate the chemical constituents. Their structures were elucidated by chemical and spectral analysis (IR, MS, 1D and 2D NMR, etc.).</p><p><b>RESULTS</b>Besides three known phthalide derivatives, one new dimeric phthalide derivative and a pair of epimer were isolated and their structures were identified as Z-3',8',3'a,7'a-tetrahydro-6,3',7,7'a-diligustilide-8'-one (1), Z,Z'-6,6',7,3'a-diligustilide (2) and the 8-epimer (3) of 2 on the basis of spectral data.</p><p><b>CONCLUSION</b>Compound 1 is a new dimeric phthalide derivative, and compound 3 was first reported from radix Angelica</p>