Hydrochloric Acid → 1-(1-ethyl-propyl)-2-thiophen-2-ylmethyl-1H-benzoimidazole-5-carboxylic acid methyl ester

Participants

Reaction Conditions

Reaction Steps

0.72 g of 4-(1-ethyl-propylamino)-3-(2-thiophen-2-yl-acetylamino)-benzoic acid methyl ester were dissolved in 5 ml of dry dioxane and 10 ml of 4M hydrochloric acid in dioxane were added. The reaction was heated in a microwave reactor to 120° C. for 10 min and concentrated to yield 0.69 g (100%) of 1-(1-ethyl-propyl)-2-thiophen-2-ylmethyl-1H-benzoimidazole-5-carboxylic acid methyl ester as a brown solid which was used in the next step without further purification.

Provenance & Evidence