反应详情

0.3 g (0.584 mmol) 4-{5-[(3-difluoromethoxy-benzenesulfonyl)-methyl-amino]-2-methoxy-phenyl}-piperazine-1-carboxylic acid tert-butyl ester from preparation example 2 were dissolved in 8 mL of ethanol and 0.8 mL of 5 N HCl in isopropanol were added. After stirring for 16 h at room temperature, the solvent was evaporated to yield 0.255 g of title compound.

1. customthe solvent was evaporated