2-(Trifluoromethyl)benzylamine → Pyrido[4,3-d]pyrimidine-4,7-diamine,n4-[[2-(trifluoromethyl)phenyl]methyl]-

Participants

Reaction Conditions

Reaction Steps

A mixture of 7-amino-4-methylthiopyrido[4,3-d]pyrimidine (225 mg, 1.17 mmol) and 2-(trifluoromethyl)benzylamine (0.90 mL, 6.42 mmol) is stirred under N2 at 150° C. for 1 h. The resulting product is chromatographed on silica gel (5% EtOH/EtOAc) to give 7-amino-4-(2-trifluoromethylbenzyl) aminopyrido[4,3-d]pyrimidine (0.22 g, 59%) as a white solid. 1H NMR (DMSO) δ 9.16 (1H, s), 8.88 (1H, t, J=5.7 Hz), 8.23 (1H, s), 7.75 (1H, d, J=7.7 Hz), 7.62 (1H, t, J=7.5 Hz), 7.50 (1H, d, J=7.4 Hz), 7.47 (1H, t, J=7.6 Hz), 6.51 (2H, brs), 6.39 (1H, s), 4.92 (2H, d, J=5.5 Hz).

Provenance & Evidence