反应详情

By an operation in the same manner as in Example 1 and using (2S,3R)-3-cyclopropyl-2-methylpyrrolidin-3-ol 0.5 oxalate (260 mg), 2,4-difluoro-3-methylbenzonitrile (364 mg) and lithium carbonate (234 mg), the title compound was obtained as a colorless solid (yield: 106 mg, yield: 24%).