Sodium Hydroxide → MK-2894 (sodium salt)

Participants

Reaction Steps

A solution of 4-{1-[({2,5-dimethyl-4-[4-(trifluoromethyl)benzyl]-3-thienyl}carbonyl)amino]cyclopropyl}benzoic acid from Example 16, Step 4 (112 mg, 0.236 mmol) in EtOH (5 mL), was treated with NaOH (1.0N in water, 236 μL, 0.236 mmol) after which a precipitate was formed. The mixture then obtained was concentrated to dryness. Water (15 mL) was added to the residue. The very fine resulting suspension was frozen in a bath of dry ice and acetone and lyophilized to afford the desired product as a white fluffy solid. MS (−APCI): m/z 472 (M−23)−.

Provenance & Evidence