N,N-Diethyl-2-propanamine → 2-Pyridin-2-yl-pyrimidine-5-carboxylic acid pyrrolo[2,3-b]pyridine-1-ylamide

Participants

Reaction Conditions

Reaction Steps

Diethyl-iso-propylamine (1.13 mmol) is added a solution of 2-pyridin-2-yl-pyrimidine-5-carboxylic acid (0.75 mmol), pyrrolo[2,3-b]pyridine-1-ylamine (0.75 mmol) and TBTU in anhydrous DMF (7 mL) at rt, and the reaction mixture is stirred at 80° C. overnight. The reaction mixture is concentrated in vacuo. The residue is dissolved in EtOAc, washed with water twice, dried (Na2SO4), filtered and concentrated in vacuo. The residue is purified by silica gel chromatography eluting with 10% MeOH in DCM to give a crude product. The product is crystallized from EtOAc to afford 2-pyridin-2-yl-pyrimidine-5-carboxylic acid pyrrolo[2,3-b]pyridine-1-ylamide (78 mg, 25%) as a solid. MS: 317 (M+H); 1H NMR (300 MHz, CD3OD): δ 6.56 (m, H) 7.24 (m, H), 7.53 (m, H), 7.61 (m, H), 8.01-8.17 (m, 2H), 8.27 (d, H), 8.69 (m, H), 8.78(m, H), 9.51 (s, 2H).

Provenance & Evidence