Water → HCID 24781181, compound

Participants

Reaction Steps

Diethylaminosulfur trifluoride (301 μL) was added to a solution of (E)-(6S,8S,9aR)-6-(3,4,5-trifluorophenyl)-8-hydroxy-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzylidene]octahydroquinolizin-4-one that is an optically active compound obtained above with a retention time of 4.4 minutes (228 mg) in dichloromethane (20 mL) under ice-cooling, and the reaction solution was stirred at room temperature overnight. Crushed ice, water, and ethyl acetate were added to the reaction solution, and the organic layer was separated. The resulting organic layer was washed with brine, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (elution solvent: heptane-ethyl acetate system->ethyl acetate-methanol system) and CHIRALPAK™ AD-H manufactured by Daicel Chemical Industries, Ltd. (2 cm×25 cm; mobile phase: ethanol-hexane system) to obtain (E)-(6S,8R,9aR)-8-fluoro-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzylidene]-6-(3,4,5-trifluorophenyl)octahydroquinolizin-4-one (69 mg), (E)-(6S,9aR)-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzylidene]-6-(3,4,5-trifluorophenyl)-1,2,3,6,9,9a-hexahydroquinolizin-4-one (125 mg), and (E)-(6S,9aR)-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzylidene]-6-(3,4,5-trifluorophenyl)-1,2,3,6,7,9a-hexahydroquinolizin-4-one (1.8 mg). The property values of (E)-(6S,8R,9aR)-8-fluoro-3-[3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzylidene]-6-(3,4,5-trifluorophenyl)octahydroquinolizin-4-one are as follows.

Provenance & Evidence