Methyl pyruvate → HCID 22052075, compound

Participants

Reaction Steps

4-(2-Chloro-4-difluoromethoxy-phenyl)-N2-(1-cyclopropyl-propyl)-pyridine-2,3-diamine (0.284 g, 0.77 mmol) and methyl pyruvate (140 μL, 1.54 mmol) were treated substantially as described in Part F of Example 113 to give 8-(2-Chloro-4-difluoromethoxy-phenyl)-4-(1-cyclopropyl-propyl)2-methyl-4H-pyrido[2,3-b]pyrazin-3-one (Example 115b): 1H NMR (300 MHz, CDCl3) δ 8.52–8.46 (2d, 1H, J=4.8), 7.37–7.32 (m, 2H), 7.26–7.14 (m, 2H), 6.85–6.37(t,1H, J=73.3 Hz), 5.09–4.95, 4.75–4.2 (2m, 1H), 2.48 (s, 3H), 2.4–2.25 (m, 1H), 2.23–2.16 (m, 1H), 2.13–1.93 (m, 1H), 0.90–0.85 (t, 3H, J=7.3 Hz), 0.80–0.67 (m, 1H), 0.57–0.42 (m, 1H), 0.40–0.29 (m, 1H), 0.24–0.18 (m, 1H). MS (AP) m/z 420.2 [(M+H)+, 100], 461.3 [(M+H+CH3CN)+, 20].

Provenance & Evidence