Pyridine → HCID 73505016, compound

Participants

Reaction Steps

A solution of (R)-1-(3-amino-4-(methoxymethyl)-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea (30 mg, 0.088 mmol) in THF (1 ml) was charged with pyridine (72 μl, 0.890 mmol) and AcCl (62 μl, 0.872 mmol). The mixture was stirred at RT for 17 hr before 1N NaOH (1.2 ml, 1.200 mmol) was added and stirred at RT for 2 hr and then heated to 50° C. for 1 hr. The reaction was quenched with sat aq NH4Cl and extracted into EtOAc. The mixture was washed with sat aq NH4Cl followed by brine, dried over MgSO4, filtered, concentrated in vacuo and purified via flash chromatography (0-20% MeOH/DCM) to give (R)—N-(4-(methoxymethyl)-6-(3-(1-phenylethyl)ureido)-1H-pyrazolo[4,3-c]pyridin-3-yl)acetamide. MS ESI calc'd for C19H23N6O3 [M+H]+ 383. found 383. 1H NMR (ppm, 500 MHz, DMSO-d6) δ 12.81 (s, 1H), 10.01 (s, 1H), 9.13 (s, 1H), 7.33 (m, 5H), 7.22 (m, 1H), 4.89 (t, J=6.8 Hz), 4.59 (s, 2H), 3.28 (s, 3H), 2.06 (s, 3H), 1.39 (d, 5.1 Hz).

Provenance & Evidence