Dimethylamine, hydrochloride → 3-(5,6-Dimethyl-1H-benzoimidazol-2-yl)-1H-indazole-5-carboxylic acid dimethylamide dihydrochloride

Participants

Reaction Steps

By proceeding in a manner similar to Example 246(j) above, but (i) using 3-(5,6-dimethyl-1H-benzoimidazol-2-yl)-1H-indazole-5-carboxylic acid [97 mg, Example 263] and dimethylamine hydrochloride (23 mg), (ii) carrying out the reaction at ambient temperature overnight, and (iii) subjecting the reaction product to flash column chromatography [eluting with ethyl acetate to ethyl acetate/methanol (97:3, v/v)] followed by treatment with 4M hydrogen chloride in 1,4-dioxane and trituration with dichloromethane and diethyl ether there was prepared 3-(5,6-dimethyl-1H-benzoimidazol-2-yl)-1H-indazole-5-carboxylic acid dimethylamide dihydrochloride (8 mg) as a white solid. LC-MS (METHOD M): RT=9.37 minutes, 320 (M+H)+.

Provenance & Evidence