Hydrochloric Acid → (3-Methyl-4,10-dihydro-3H-2,3,4,9-tetraaza-benzo[f]azulen-9-yl)-[3-methyl-4-(3-piperidin-4-yl-propoxy)-phenyl]-methanone Hydrochloride

Participants

Reaction Steps

4M HCl solution in dioxan (1 ml) was added to a solution of 4-{3-[2-methyl-4-(3-methyl-4,10-dihydro-3H-2,3,4,9-tetraaza-benzo[f]azulene-9-carbonyl)-phenoxy]-propyl}-piperidine-1-carboxylic acid tert-butyl ester from Example E68.4 (71 mg, 0.13 mmol) in methanol (3 ml). The mixture was stirred for 20 h at room temperature then solvents were concentrated in vacuo. The residue was triturated with diethyl ether to yield the title compound (61 mg, 97%).

Provenance & Evidence