反应详情

温度

150 °C

To 6-chloro-4-(5,6-dimethoxypyridin-2-ylamino)pyridazine-3-carboxamide (500 mg, 1.6 mmol) and tert-butyl (1S,2R)-2-aminocyclohexylcarbamate (692 mg, 3.2 mmol) in NMP (1.5 mL), methoxy trimethylsilane (0.5 mL, 3.6 mmol) was added and the mixture heated to 150° C. for 65 h. The mixture was concentrated under high vacuum to obtain a sticky crude mass that was purified by chromatography (silica, 100-200 mesh, 1-10% methanol in dichloromethane) to give 6-((1R,2S)-2-amino-cyclohexylamino)-4-(5,6-dimethoxy-pyridin-2-ylamino)-pyridazine-3-carboxylic acid amide (220 mg 35%) as a yellow solid. LC-MS 388 [M+H]+.

1. concentrationThe mixture was concentrated under high vacuum
2. customto obtain a sticky crude mass that
3. customwas purified by chromatography (silica, 100-200 mesh, 1-10% methanol in dichloromethane)