NMR studies of some chiral 3-acyclcamphor were Conducted. A complete assignment was given to 3-(4-pyridyl)carbonylcamphor by the 2D NMR technology. Assignments were also given to other beta-diketones. The results show...NMR studies of some chiral 3-acyclcamphor were Conducted. A complete assignment was given to 3-(4-pyridyl)carbonylcamphor by the 2D NMR technology. Assignments were also given to other beta-diketones. The results showed that those 3-acylcamphors exist in the enol forms: while: 7-benzoyl menthone exists in diketon form.展开更多
The metabolism of 7-(4-Chlorbenzyl)-7,8,13,13a-tetrahydroberberine chloride (CTHB), a potential anti-arrhythmia and anti-ischemia drug,was studied in rat bile. A metabolite and unchanged CTHB were found in the bile. C...The metabolism of 7-(4-Chlorbenzyl)-7,8,13,13a-tetrahydroberberine chloride (CTHB), a potential anti-arrhythmia and anti-ischemia drug,was studied in rat bile. A metabolite and unchanged CTHB were found in the bile. Characterization and structural elucidation of the metabolite was achieved by LC/MS and LC/NMR.展开更多
文摘NMR studies of some chiral 3-acyclcamphor were Conducted. A complete assignment was given to 3-(4-pyridyl)carbonylcamphor by the 2D NMR technology. Assignments were also given to other beta-diketones. The results showed that those 3-acylcamphors exist in the enol forms: while: 7-benzoyl menthone exists in diketon form.
文摘The metabolism of 7-(4-Chlorbenzyl)-7,8,13,13a-tetrahydroberberine chloride (CTHB), a potential anti-arrhythmia and anti-ischemia drug,was studied in rat bile. A metabolite and unchanged CTHB were found in the bile. Characterization and structural elucidation of the metabolite was achieved by LC/MS and LC/NMR.
