Hydrochloric Acid → [3-Fluoro-4-(3-piperazin-1-yl-propoxy)-phenyl]-(3-methyl-4,10-dihydro-3H-2,3,4,9-tetraaza-benzo[f]azulen-9-yl)-methanone Dihydrochloride

Participants

Reaction Steps

A solution of 4-{3-[2-fluoro-4-(3-methyl-4,10-dihydro-3H-2,3,4,9-tetraaza-benzo[f]azulene-9-carbonyl)-phenoxy]-propyl}-piperazine-1-carboxylic acid tert-butyl ester from Example E49.1 (615 mg, 1.09 mmol) in methanol (2 ml) at 0° C. was treated with 4N HCl in dioxan (5 ml). The solution was allowed to warm to room temperature and stirred for 1 h. Solvents were removed in vacuo to give a white foam identified as the title compound (585 mg, 100%).

Provenance & Evidence