Hydrochloric Acid → 7-[5-(Cyclopropylmethoxy)-1,3-benzodioxol-4-yl]-2-methyl-N-piperidin-4-yl-1H-pyrrolo[3,2-b]pyridine-3-carboxamide hydrochloride

Participants

Reaction Conditions

Reaction Steps

tert-Butyl 4-[({7-[5-(cyclopropylmethoxy)-1,3-benzodioxol-4-yl]-2-methyl-1H-pyrrolo[3,2-b]pyridin-3-yl}carbonyl)amino]piperidine-1-carboxylate from example D.e1 (2.72 g; 4.95 mmol) is dissolved in dry 2-propanol (50 mL). After addition of 4M HCl in dioxane (5.0 mL) the stirred reaction mixture is heated to 80° C. for two hours. At ambient temperature tert.-butyl methyl ether (100 mL) is added. The precipitated product is isolated by suction filtration, washed with several portions of tert.-butyl methyl ether and dried in high vacuo at 40° C. to yield of the title compound as yellow solid.

Provenance & Evidence