A new triterpene glycoside, 24S-cycloartane-3 beta, 16 beta, 24, 25, 30-pentaol 3-O-(2-O-beta-D-xylosyl)-beta-D-xyloside was isolated from Thalictrum smithii. Its structure was determined by spectroscopic and chemical...A new triterpene glycoside, 24S-cycloartane-3 beta, 16 beta, 24, 25, 30-pentaol 3-O-(2-O-beta-D-xylosyl)-beta-D-xyloside was isolated from Thalictrum smithii. Its structure was determined by spectroscopic and chemical methods.展开更多
Two new glycosides 1,5-dihydroxyxathanone-6-o-beta-D-glucoside and flavanonol-taxifolin-3, 7-o-alpha-L-dirhamnoside. were isolated from the aerial parts of Hypericum japonicum Thunb, ex Murray, The chemical structures...Two new glycosides 1,5-dihydroxyxathanone-6-o-beta-D-glucoside and flavanonol-taxifolin-3, 7-o-alpha-L-dirhamnoside. were isolated from the aerial parts of Hypericum japonicum Thunb, ex Murray, The chemical structures were determined by spectroscopic methods and chemical evidences展开更多
From the aerial part of Hypericum japonicum Thunb. ex Murray, two new chromone glycosides, 5, 7-Dihydroxy-2-(1-methylpropyl) chromone-8-beta-D-glucoside and 5, 7-Dihydroxy-2-isopropylchromone-8-beta-D-glucoside, were ...From the aerial part of Hypericum japonicum Thunb. ex Murray, two new chromone glycosides, 5, 7-Dihydroxy-2-(1-methylpropyl) chromone-8-beta-D-glucoside and 5, 7-Dihydroxy-2-isopropylchromone-8-beta-D-glucoside, were isolated and their structures were determined on basis of spectroscopic evidences.展开更多
From the aerial part of Hypericum japonicum Thunb. ex Murray, two new pyrones, japonicumone-A and -B, were isolated and their structures were determined on basis of spectroscopic evidence.
文摘A new triterpene glycoside, 24S-cycloartane-3 beta, 16 beta, 24, 25, 30-pentaol 3-O-(2-O-beta-D-xylosyl)-beta-D-xyloside was isolated from Thalictrum smithii. Its structure was determined by spectroscopic and chemical methods.
文摘Two new glycosides 1,5-dihydroxyxathanone-6-o-beta-D-glucoside and flavanonol-taxifolin-3, 7-o-alpha-L-dirhamnoside. were isolated from the aerial parts of Hypericum japonicum Thunb, ex Murray, The chemical structures were determined by spectroscopic methods and chemical evidences
文摘From the aerial part of Hypericum japonicum Thunb. ex Murray, two new chromone glycosides, 5, 7-Dihydroxy-2-(1-methylpropyl) chromone-8-beta-D-glucoside and 5, 7-Dihydroxy-2-isopropylchromone-8-beta-D-glucoside, were isolated and their structures were determined on basis of spectroscopic evidences.
文摘From the aerial part of Hypericum japonicum Thunb. ex Murray, two new pyrones, japonicumone-A and -B, were isolated and their structures were determined on basis of spectroscopic evidence.
