Sodium Hydroxide → 5-Cyclopropyl-2-(5-methyl-6-phenylpyridin-3-ylamino)benzoic acid

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Reaction Conditions

Reaction Steps

The solid residue obtained in step A was dissolved in ethanol (5 ml) and aqueous solution 2N NaOH (0.67 ml) was added. The mixture was heated at 60° C. for 2 hours, the solvent was evaporated and the solid obtained was suspended in water. The pH was taken to 6.5 and extracted with CHCl3. The crude mixture was purified over a SCX cartridge eluting with MeOH/NH3 10:1 affording 0.070 g (yield 29%) of the expected product.

Provenance & Evidence