Benzenesulfonic Acid → HCID 131730227, compound

Participants

Reaction Steps

N-{2,5-Difluoro-4-[(2-{[(3-hydroxyazetidin-1-yl)carbonyl]amino}pyridin-4-yl)oxy]phenyl}-N′-(4-fluorophenyl)cyclopropane-1,1-dicarboxyamide (31.6 mg) was suspended in ethanol (0.316 ml). After adding benzenesulfonic acid (10.2 mg) at room temperature to form a solution, it was stirred at room temperature for 17 hours and 50 minutes. Ethanol (0.5 ml) was added, and then the precipitate was collected by filtration and washed with tert-butyl methyl ether (1 ml, three times). It was then dried under aeration at room temperature for 1 hour to give the title compound (30.4 mg, 74%) as white crystals.

Provenance & Evidence