Diisopropylethylamine → HCID 68349189, compound

Participants

Reaction Steps

To a solution of 4-((1-((1H-indol-6-yl)methyl)azetidin-3-ylidene)methyl)-3-chlorobenzoic acid (0.26 g, 0.74 mmol) in DCM (25 mL) was added DIPEA (0.29 g, 2.22 mmol), tert-butyl-2-aminophenylcarbamate (0.27 g, 1.18 mmol) and HATU (0.37 g, 0.96 mmol). The reaction mixture was stirred overnight at room temperature under a nitrogen atmosphere. After completion of the reaction as indicated by HPLC, the mixture was washed with saturated sodium bicarbonate (2×20 mL) and brine (1×15 mL). It was dried (Na2SO4), filtered and evaporated to give the crude product which was purified by column chromatography (10% MeOH: 90% DCM). After evaporation of pooled fractions of pure product, tert-butyl (2-(4-((1-((1H-indol-6-yl)methyl)azetidin-3-ylidene)methyl)-3-chlorobenzamido)phenyl)carbamate (0.2 g) was isolated as an off-white solid. ES+(M+H)+ 543.

Provenance & Evidence