反应详情

To a stirred and cooled solution of commercially available chlorosulfonyl isocyanate (0.215 mL, 2.47 mmol) in dichloromethane (5 mL) was added tert-butanol (0.232 mL, 2.47 mmol) and the mixture was stirred at 0° C. for 30 min. Then 3-[6′-methyl-4′-(4-trifluoromethyl-phenyl)-[2,2′]bipyridinyl-6-yl]-phenylamine (example 327) (0.200 g, 0.494 mmol) and triethyl amine (0.42 mL, 2.96 mmol) were added and the mixture was stirred at 23° C. for 0.5 h. Diluted with DCM, washed with sat. NaHCO3-sol. and water, dried the organic layer over Na2SO4. Removal of the solvent in vacuum left a crude product which was purified by silica gel column chromatography with heptane/EtOAc/THF, followed by trituration with diethyl ether to give the title compound as an off-white solid (0.100 g, 35%). MS (ISP) 585.3 [(M+H)+].

1. stirringthe mixture was stirred at 0° C. for 30 min
2. stirringthe mixture was stirred at 23° C. for 0.5 h
3. washwashed with sat. NaHCO3-sol
4. dry with materialand water, dried the organic layer over Na2SO4
5. customRemoval of the solvent in vacuum
6. waitleft a crude product which
7. customwas purified by silica gel column chromatography with heptane/EtOAc/THF