O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate → 1-{1-[6-(2-Hydroxymethyl-2,3-dihydro-indole-1-carbonyl)-pyrimidin-4-yl]-piperidin-4-yl}-1,3-dihydro-imidazo[4,5-b]pyridin-2-one

Participants

Reaction Steps

85 mg (0.25 mmol) 6-[4-(2-oxo-2,3-dihydroimidazo[4,5-b]pyridin-1-yl)-piperidin-1-yl]-pyrimidine-4-carboxylic acid and 45 mg (0.30 mmol) (2,3-dihydro-1H-indole-2-yl)-methanol in 50 μL (0.36 mmol) TEA and 0.90 mL DMF were combined with 85 mg (0.27 mmol) TBTU and stirred overnight at RT. Then the reaction mixture was purified by preparative HPLC-MS. The product-containing fractions were combined and freeze-dried.

Provenance & Evidence