Trifluoroacetic acid → 2-{4-(2-({(2-(4-chlorophenyl)-1,3-thiazol-4-yl)methyl}sulfanyl)-3,5-dicyano-6-(pyrrolidin-1-yl)pyridin-4-yl)phenoxy}ethyl L-alaninate trifluoroacetate

Participants

Reaction Steps

250 mg (0.335 mmol) of 2-{4-(2-({(2-(4-chlorophenyl)-1,3-thiazol-4-yl)methyl}sulfanyl)-3,5-dicyano-6-(pyrrolidin-1-yl)pyridin-4-yl)phenoxy}ethyl N-(tert-butoxycarbonyl)-L-alaninate (Example 25A) were initially charged in 3.5 ml of dichloromethane. 0.258 ml (3.354 mmol) of trifluoroacetic acid was added, and the reaction solution was then stirred at RT overnight. After one day, another 0.125 ml (1.624 mmol) of trifluoroacetic acid was added to the reaction. The reaction solution was concentrated by evaporation and the residue was triturated with diethyl ether. The solid formed was filtered off. This gave 255 mg (98% of theory) of the target compound.

Provenance & Evidence