반응 #59801

반응 방정식

1,1,1-trifluoro-2,3-epoxypropane

[4,5-bis-(4-chloro-phenyl)-2-(2-ethoxy-4-trifluoromethyl-phenyl)-4,5-dihydro-imidazol-1-yl]-[piperazin-1-yl]-methanone

triethylamine

→

[4,5-bis-(4-chloro-phenyl)-2-(2-ethoxy-4-trifluoromethyl-phenyl)-4,5-dihydro-imidazol-1-yl]-[4-(2-hydroxy-2-trifluoromethyethyl)-piperazin-1-yl]-methanone

용매

methanol

반응 조건

후처리

1. 1
   기타Evaporation of the solvent and chromatography of the residue over silica gel using 0-5% methanol in methylene chloride

실험 절차

1,1,1-trifluoro-2,3-epoxypropane (9 uL, 0.10 mmol) was added to a mixture of [4,5-bis-(4-chloro-phenyl)-2-(2-ethoxy-4-trifluoromethyl-phenyl)-4,5-dihydro-imidazol-1-yl]-[piperazin-1-yl]-methanone (30 mg, 0.048 mmol) and triethylamine (20 uL, 0.144 mmol) in anhydrous methanol (1.0 mL). The reaction was stirred overnight. Evaporation of the solvent and chromatography of the residue over silica gel using 0-5% methanol in methylene chloride gave [4,5-bis-(4-chloro-phenyl)-2-(2-ethoxy-4-trifluoromethyl-phenyl)-4,5-dihydro-imidazol-1-yl]-[4-(2-hydroxy-2-trifluoromethyethyl)-piperazin-1-yl]-methanone, which was dissolved in dilute hydrochloric acid (0.5 N, 1 mL) and lyophilized to give [4,5-bis-(4-chloro-phenyl)-2-(2-ethoxy-4-trifluoromethyl-phenyl)-4,5-dihydro-imidazol-1-yl]-[4-(2-hydroxy-2-trifluoromethyethyl)-piperazin-1-yl]-methanone hydrochloride as an off-white powder (38 mg, 84%). LR-MS (APCI): 703.5 [(M+H)+].

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