反应详情

A mixture of 5-chloro-2-(3-((2,4-difluorophenyl)amino)azetidin-1-yl)nicotinic acid (D118) (40 mg, 0.118 mmol), 1-Hydroxybenzotriazole hydrate (18 mg, 0.118 mmol) and 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (34 mg, 0.177 mmol) in dimethylformamide (5 ml) was stirred 10 min at room temperature. A solution of methyl 4-(1-aminocyclopropyl)benzoate hydrochloride (D7) (32.2 mg, 0.141 mmol) and triethylamine (0.02 ml, 0.141 mmol) in dry dimethylformamide (2 ml) was added and the mixture was stirred 24 h at room temperature. After solvent evaporation, water (10 ml) was added and the formed precipitate was filtered off and purified by Biotage SNAP-Si (10 g) cartridge eluting with a mixture dichloromethane/methanol from 100/0 to 80/20. Collected fractions, after solvent evaporation afforded the title compound (D169) (105 mg).

1. stirringthe mixture was stirred 24 h at room temperature
2. customAfter solvent evaporation, water (10 ml)
3. additionwas added
4. filtrationthe formed precipitate was filtered off
5. custompurified by Biotage SNAP-Si (10 g) cartridge
6. washeluting with a mixture dichloromethane/methanol from 100/0 to 80/20
7. customCollected fractions, after solvent evaporation