Dichloromethane → 2-{4-(2-({(2-(4-Chlorophenyl)-1,3-thiazol-4-yl)methyl}sulfanyl)-3,5-dicyano-6-(propylamino)pyridin-4-yl)phenoxy}ethyl N-(tert-butoxycarbonyl)-L-alaninate

Participants

Reaction Steps

758 mg (1.348 mmol) of 2-({(2-(4-chlorophenyl)-1,3-thiazol-4-yl)methyl}sulfanyl)-4-(4-(2-hydroxyethoxy)phenyl)-6-(propylamino)pyridine-3,5-dicarbonitrile (Example 12), 765 mg (4.043 mmol) of N-(tert-butoxycarbonyl)-L-alanine and 82 mg (0.674 mmol) of 4-dimethylaminopyridine were initially charged in 10.3 ml of DMF/dichloromethane (1:1). 336 mg (1.752 mmol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride were added, and the reaction solution was then stirred at RT overnight. The reaction solution was freed from dichloromethane and the residue was purified by preparative HPLC (acetonitrile/water+0.1% TFA). This gave 929 mg (94% of theory) of the target compound.

Provenance & Evidence