反应详情

The procedure used in the first step was as follows: a mixture of 2,4-dichloro-6-(4-fluorophenyl)pyrido[3,2-d]pyrimidine (2.0 g), isopropylamine (2 ml) or cyclopropylamine (2 ml) in 2,6-dioxane (20 mL) was stirred for 1 hour. Solvents were concentrated in vacuo and the residue was dissolved in DCM (20 ml). The solid was filtered to provide 2-chloro-6-(4-fluorophenyl)-N-isopropylpyrido[3,2-d]pyrimidin-4-amine and 2-chloro-6-(4-fluorophenyl)-N-cyclopropylpyrido[3,2-d]pyrimidin-4-amine respectively, which were characterized by their mass spectra as follows: MS (m/z) 317 [M+H]+ and MS (m/z) 315 [M+H]+, respectively.

1. concentrationSolvents were concentrated in vacuo
2. dissolutionthe residue was dissolved in DCM (20 ml)
3. filtrationThe solid was filtered