反应详情

The title compound was prepared in analogy to example 1, intermediate a, from 6-chloro-4-phenyl-pyridazin-3-ylamine and using a gradient of n-heptane:ethyl acetate (100:0 to 40:60) for the chromatographic purification. Light yellow solid (52%). MS (ESI+): m/z=220.064 ([M+H]+).

1. customfor the chromatographic purification