反应详情

Prepared according to the procedure described for example 2 from 2-(2,6-difluoro-phenyl)-5-hydroxy-1-methyl-6-oxo-1,6-dihydro-pyrimidine-4-carboxylic acid ethyl ester (31 mg, 0.1 mmol) and piperonylamine (76 mg, 0.5 mmol). The title product was obtained as an off-white solid (18.6 mg, 45% yield). 1HNMR (500 MHz, CDCl3) δ: 12.35 (1H, s), 7.74 (1H, br s), 7.52–7.46 (1H, m), 7.04 (2H, dd, J=8.24, 7.33 Hz), 6.80 (1H, s), 6.78–6.74 (2H, m), 5.93 (2H, s), 4.48 (2H, d, J=6.10 Hz), 3.40 (3H, s). HRMS (ESI) calcd for C20H14F2N3O5 (M−H): 414.0902; found: 414.0900.

1. customPrepared