HCID 86629441, compound → HCID 67063026, compound

Participants

Reaction Steps

3-(2-chloro-4-fluoro-5-nitrophenyl)-7-(methoxy(methyl)amino)-1-methyl-3,4-dihydro pyrido[4,3-d]pyrimidin-2(1H)-one (1 g, 2.5 mmol), Pd/C (0.3 g) were combined in MeOH (30 mL) and hydrogenated (45 psi) at 50° C. for 4 days. The catalyst was removed by filtration and the filtrate was concentrated in vacuo. The residual solid was washed with ethyl acetate and dried in vacuo to give 3-(5-amino-2-chloro-4-fluorophenyl)-1-methyl-7-(methylamino)-3,4-dihydropyrido[4,3-d]pyrimidin-2(1H)-one (0.6 g, 71% yield). 1H-NMR (400 MHz, DMSO-d6): δ 7.71 (s, 1 H), 7.26 (d, J==10.8 Hz, 1 H), 6.78 (d, J=8.8 Hz, 1 H), 6.41 (m, 1 H), 5.94 (s, 1 H), 5.43 (s, 2 H), 4.50 (d, J=13.6 Hz, 1 H), 4.40 (d, J=13.6 Hz, 1 H), 3.16 (s, 3 H), 2.76 (d, J=5.2 Hz, 3 H); MS (ESI) m/z: 336.2 [M+H]+.

Provenance & Evidence