Hydrogen Bromide → HCID 13588067, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 30 parts of ethyl 4-[[1-[(2-pyridinyl)methyl]-1H-benzimidazol-2-yl]amino]-1-piperidinecarboxylate and 300 parts of a hydrobromic acid solution 48% in water was stirred and heated for 3 hours at 80° C. The reaction mixture was evaporated and the residue was crystallized from methanol, yielding 41 parts (93.2%) of N-(4-piperidinyl)-1-[(2-pyridinyl)methyl]-1H-benzimidazol-2-amine trihydrobromide; mp. 295.9° C. (intermediate 80).

Provenance & Evidence