Diisopropylethylamine → HCID 86643857, compound

Participants

Reaction Steps

361 mg (0.724 mmol) of (2S)-2,4-bis((tert-butoxycarbonyl)amino)butanoic acid N,N-dicyclohexylamine salt together with 151 mg (0.790 mmol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, 151 mg (0.988 mmol) of 1-hydroxy-1H-benzotriazole hydrate and 0.574 ml (3.293 mmol) of N,N-diisopropylethylamine were dissolved in 10 ml of DMF, after which 500 mg (0.659 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 L-alaninate trifluoroacetate were added. The reaction mixture was stirred at room temperature overnight and then purified twice by preparative HPLC (acetonitrile/water). This gave 420 mg (67% of theory) of the target compound.

Provenance & Evidence