Calciumoxide → HCID 88502046, compound

Participants

Reaction Steps

A mixture of 3.2 parts of N-[1-[2-[(2-chloro-4-pyrimidinyl)-amino]ethyl]-4-piperidinyl]-1-[(4-fluorophenyl)methyl]-1H-benzimidazol-2-amine dihydrochloride, 3 parts of calcium oxide and 120 parts of methanol was hydrogenated at normal pressure and at room temperature with 2 parts of palladium-on-charcoal catalyst 20%. After the calculated amount of hydrogen was taken up, the catalyst was filtered off and the filtrate was evaporated. The residue was crystallized from a mixture of acetonitrile and 2,2'-oxybispropane. The product was filtered off and dried, yielding 1.1 parts of 1-[(4-fluorophenyl)methyl]-N-[1-[2-(4-pyrimidinylamino)ethyl]-4-piperidinyl]-1H-benzimidazol-2-amine hemihydrate; mp. 133.9° C. (compound 94)

Provenance & Evidence