反应详情

To a stirred and cooled (0° C.) solution of (2RS,5SR)-5-(4-fluoro-phenyl)-1-(toluene-4-sulfonyl)-pyrrolidine-2-carboxylic chloride (764 mg, 2 mmol) in dichloromethane (30 ml) was added pyridine (0.16 ml, 2 mmol) and 3-picolylamine (0.18 ml, 1.8 mmol). The reaction mixture was stirred at room temperature for 22 h. Aqueous work-up, formation of the hydrochloride (3N MeOH/HCl) and crystallization (diethyl ether) yielded the title compound (0.69 g, yield 70%) as a white solid, m.p. 186° C. and MS: m/e=454.5 (M+H+).

1. stirringThe reaction mixture was stirred at room temperature for 22 h
2. customAqueous work-up, formation of the hydrochloride (3N MeOH/HCl) and crystallization (diethyl ether)