Indole-2-carboxylic acid → N-[2-[4-[[1-[(4-fluorophenyl)methyl]-1H-benzimidazol-2-yl]amino]-1-piperidinyl]ethyl]-1H-indole-2-carboxamide

참여 물질

반응 단계

A mixture of 1.6 parts of 1H-indole-2-carboxylic acid, 3.67 parts of N-[1-(2-aminoethyl)-4-piperidinyl]-1-[(4-fluorophenyl)methyl]-1H-benzimidazol-2-amine, 2.1 parts of N,N'-methanetetraylbis[cyclohexanamine] and 195 parts of dichloromethane was stirred over weekend at room temperature. The reaction mixture was filtered over Hyflo and the filtrate was evaporated. The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol (95:5 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The residue was crystallized from acetonitrile, yielding 1 parts (19.5%) of N-[2-[4-[[1-[(4-fluorophenyl)methyl]-1H-benzimidazol-2-yl]amino]-1-piperidinyl]ethyl]-1H-indole-2-carboxamide; mp. 232.1° C. (compound 76).

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