OBJECTIVETo study the chemical constituents of Ginseng Sini Tang.

METHODThe constituents were identified by physico-chemical properties and spectral analysis.

RESULTThe 12 compounds were identified as ginsenoside-Rb1,-Rb2,-Rb3,-Rc,-Rd,-Re,-Rg1,Rg2,Rg3,Rf,Ra1,Ra2. The 10 compounds were identified as benzoylmesaconitine(BM), benzoylaconitine(BA), benzoylhypaconitine(BH), neoline (NL), fuziline (FL), 14-ethyl-talatisamine14-acetyl-talatisamine (AT), 14-benzoylhypaconine-8-linoleate (HAL),14-benzoyldeoxyaconine-8-oleate(HAO), 14-benzoylhypaconine-8-palmitate(HAP), talatisamine(TS).

CONCLUSIONAll these compounds were obtained from Ginseng Sini Tang for first times.

Alkaloids ; isolation & purification ; pharmacology ; Animals ; Depression, Chemical ; Drug Combinations ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Ginsenosides ; isolation & purification ; pharmacology ; Myocardial Contraction ; drug effects ; Panax ; chemistry ; Plants, Medicinal ; chemistry

AIM: To study the chemical constituents of stems of Gymnema sylvestre (Retz.) Schult. METHODS: Chromatographic techniques using silica gel, C18 reversed phase silica gel, and prep-HPLC were used. The structures were elucidated on the basis of MS and spectroscopic analysis (1D and 2D NMR), as well as chemical methods. RESULTS: Seven compounds were isolated and their structures were elucidated as conduritol A (1), stigmasterol (2), lupeol (3), stigmasterol-3-O-β-D-glucoside (4), the sodium salt of 22α-hydroxy-longispinogenin-3-O-β-D-glucopyranosyl-(1→3)-β-D-glu-curono-pyranosyl-28-O-α-L-rhamnopyranoside (5), oleanolic acid-3-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranoside (6), and the sodium salt of 22α-hydroxy-longispinogenin 3-O-β-D-glucuronopyranosyl-28-O-α-L-rhamnopyranoside (7). The inhibition activities of compounds 1, 5-7 on non-enzymatic glycation of protein in vitro were evaluated. CONCLUSION Compound 7 is a new triterpenoid saponin. It was shown that compounds 1, 5-7 have weak inhibition activities for non-enzymatic glycation of protein in vitro.
Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Gymnema sylvestre ; chemistry ; Molecular Structure ; Plant Stems ; chemistry

Two previously undescribed steroidal compounds, 16, 23-epoxy-22, 26-epimino-cholest-22(N), 23, 25(26)-trien-3β-ol-3-O-β-D-glucopyranosyl-(1→2)-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside (1) and 26-O-β-D-glucopyranosyl-(25R)-5α-furost-20(22)-en-3β, 26-diol (2), together with 7 known ones including 26-O-β-D-glucopyranosyl-(25R)-5, 20(22)-dien-furost-3β, 26-diol (3), (25R)-5-en-spirost-3β-ol-O-β-D-glucopyranosyl-(1→4)-[α-L-rhmanopyranosyl-(1→2)]-β-D-galactopyranoside (4), funkioside D (5), aspidistrin (6), tigogenin-3-O-β-D-lucotrioside (7), desglucolanatigonin II (8), and degalactotigonin (9), were isolated from Solanum lyratum Thunb. Their cytotoxic activities were tested in two cancer cell lines by MTT method. One of the steroidal glycosides (6) showed significant cytotoxic activity against gastric cancer SGC7901 and liver cancer BEL-7402 cells.
Alkaloids ; chemistry ; isolation & purification ; toxicity ; Antineoplastic Agents ; chemistry ; isolation & purification ; toxicity ; Cell Line, Tumor ; Cell Survival ; drug effects ; Glycosides ; chemistry ; pharmacology ; toxicity ; Humans ; Inhibitory Concentration 50 ; Molecular Structure ; Phytosterols ; chemistry ; isolation & purification ; toxicity ; Plant Extracts ; chemistry ; toxicity ; Plants, Medicinal ; chemistry ; Solanum ; chemistry ; Sterols ; chemistry ; pharmacology ; toxicity