Diisopropylethylamine → tert-Butyl{(1R,2R)-3,3-difluoro-2-[({5-methyl-4-[6-(trimethoxymethyl)pyrazolo[1,5-a]pyrimidin-3-yl]thiophen-2-yl}carbonyl)amino]cyclohexyl}carbamate

Participants

Reaction Steps

5-Methyl-4-[6-(trimethoxymethyl)pyrazolo [1,5-a]pyrimidin-3-yl]thiophene-2-carboxylic acid (41.0 mg, 0.113 mmol) and BOP (59.9 mg, 0.135 mmol) were dissolved in DMF (752 μL) and stirred at room temperature for 5 min. To the reaction solution was added tert-butyl [(1R,2R)-2-amino-3,3-difluorocyclohexyl]carbamate (31.1 mg, 0.124 mmol) and diisopropylethyl amine (59.1 μL, 0.338 mmol) and the reaction stirred at room temperature for 2 h. The reaction was then concentrated under reduced pressure and purified by column chromatography (0-60% EtOAc/DCM) to afford the title compound (quantitative yield). LRMS (APCI) calc'd for (C27H35F2N5O6S) [M+H]+, 596.2; found 596.1.

Provenance & Evidence