HCID 22329264, compound → HCID 22329067, compound

Participants

Reaction Conditions

Reaction Steps

In THF (10 ml) was dissolved t-butyl N-(4-bromo-2-formylphenyl)-N-cyclopropyl-4-aminobutyrate (1 g). To the solution was added potassium t-butoxide (0.59 g), and the mixture was heated at 55° C. for 1.5 hours. The solvent was evaporated, which was extracted with water. The aqueous layer was washed with ethyl acetate, and neutralized by addition of 1N hydrochloric acid, and extracted with ethyl acetate. The organic layer was washed with water and saturated brine, and dried with anhydrous magnesium sulfate. The solvent was evaporated to give 7-bromo-1-cyclopropyl-2,3-dihydro-1H-1-benzazepine-4-carboxylic acid (0.44 g) as yellow crystals.

Provenance & Evidence