Water → (S)-1-(1-Phenylethyl)-6-(quinolin-5-YL)-1H-imidazo[4,5-B]pyridin-2(3H)-one

Participants

Reaction Conditions

Reaction Steps

(S)-1-(1-Phenylethyl)-6-(quinolin-5-yl)-1H-imidazo[4,5-c]pyridin-2(3H)-one ((1S)-1-Phenylethyl)(3-amino-6-(5-quinolyl)(4-pyridyl))amine (450mg, 1.32 mmol) and urea (158 mg, 2.64 mmol) were combined in 1-methylpyrrolidin-2-one (4 mL) and heated at 185° C. for 2 h. Water (10 mL) was added and the crude product was collected by filtration. The product was purified by reverse-phase preparative HPLC (20-95% acetonitrle in water, over 30 min) to give the product (92.9 mg, 19%) as an off-white solid. 1H NMR (400 MHz, DMSO-d6) δ 11.45 (s, 1H), 8.91 (dd, J=4.10, 1.76, 1H), 8.39 (d, J=0.78, 1H), 8.33 (ddd, J=8.00, 1.27, 1.07, 1H), 8.05 (d, J=8.40, 1H), 7.80 (dd, J=8.49, 7.13, 1H), 7.59 (dd, J=7.13, 1.27, 1H), 7.41-7.47 (m, 3H), 7.29-7.41 (m, 3H), H), 5.75 (d, J=7.22, 1H), 4.16 (d, J=0.78, 1H), 1.87 (d, J=7.22, 3 H); MS (ESI) m/z 367.0 [M+1]+.

Provenance & Evidence