反应详情

Reaction of intermediate 22, ethyl 1,2-dimethyl-7-hydroxy-3,6-dioxo-2,3,4,6-tetrahydro-1H-pyrimido[2,1-c][1,2,4]triazine-8-carboxylate, (0.050 g, 0.177 mmol) with 4-fluoro-3-methylbenzylamine (0.10 g, 0.72 mmol) as described in the preparation of example 1 gave 0.053 g (79% yield) of the title amide as white crystals. 1HNMR 400 MHz (CDCl3) δ (ppm): 2.31 (3H, s, CH3), 3.27 (3H, s, NCH3), 3.30 (3H, s, NCH3), 4.56 (2H, d, J=5.9 Hz, NCH2), 4.67 (2H, s, CH2), 7.02 (1H, m, aromatic), 7.14 (1H, m, aromatic), 7.17 (1H, m, aromatic), 7.71 (1H, broad t, NH), 12.02 (1H, s, OH). MS (ESI+) m/z 376 [M+H+].

1. customas described in the preparation of example 1