反应详情

The title compound was prepared in analogy to example 8, intermediate a, from 5-o-tolyl-pyridazin-4-ylamine and using a gradient of n-heptane:ethyl acetate (100:0 to 40:60) for the chromatographic purification. Light yellow solid (71%). MS (EI): m/z=199 ([M]).

1. customfor the chromatographic purification