反应详情

4-[2-(2-aminopyridin-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-(methoxymethyl)-N-pyridazin-3-ylbenzenesulfonamide and 4-[2-(2-aminopyridin-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-[(3E)-2-(methoxymethyl)pyridazin-3(2H)-ylidene]benzenesulfonamide, (Preparation 875, 93 mg, 0.17 mmol) in trifluoroacetic acid (1 mL, 10 mmol) was stirred for 24 hours. The reaction mixture was concentrated and the residue was taken in methanol (1 mL, 20 mmol) and 2 M of hydrogen chloride in water (1 mL, 2 mmol). After stirring for two days, the reaction mixture was concentrated and the residue liophilized from acetonitrile-water to give 76 mg of product as a hydrochloride salt.

1. concentrationThe reaction mixture was concentrated
2. stirringAfter stirring for two days
3. concentrationthe reaction mixture was concentrated