1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 71618041, compound

Participants

Reaction Steps

A stirred solution of 3,5-dichloro-4-({4-[(cyclopropylcarbonyl)amino]-1H-pyrrolo[3,2-c]pyridin-1-yl}carbonyl)benzoic acid (100 mg, 0.23 mmol) in anhydrous dimethylformamide (5 mL) was treated with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (68 mg, 0.358 mmol), 1-hydroxy-7-azabenzotriazole (37 mg, 0.276 mmol), N,N-diisopropylethylamine (89 mg, 0.69 mmol). Ethyl alaninate (38 mg, 0.25 mmol) was added and the reaction mixture was stirred at room temperature for about 16 hours. The reaction mixture was poured into water (100 mL) and extracted with ethylacetate (2×30 mL). The combined organic layer was washed with brine, dried over anhydrous sodium sulphate and concentrated to give crude product which was purified by flash silica gel column chromatography using linear gradient ethyl acetate and hexane to afford ethyl N-[3,5-dichloro-4-({4-[(cyclopropylcarbonyl)amino]-1H-pyrrolo[3,2-c]pyridin-1-yl}carbonyl)benzoyl]alaninate (43 mg, 34%).

Provenance & Evidence