Diisopropylethylamine → HCID 86670407, compound

Participants

Reaction Conditions

Reaction Steps

A 20-mL vial was charged with tert-butyl (3R)-3-(((methylsulfonyl)(phenyl)amino)methyl)-1-piperazinecarboxylate (0.425 g, 1.15 mmol, step 4), 2-(2-chloropyrimidin-5-yl)-1,1,1,3,3,3-hexafluoropropan-2-ol (0.411 g, 1.47 mmol, Intermediate D), DIPEA (0.602 mL, 3.45 mmol) and 1,4-dioxane (5 mL). The vial was sealed and the reaction mixture was heated at 100° C. for 20 h. The reaction mixture was allowed to cool to room temperature and partitioned between water (30 mL) and EtOAc (30 mL). The aqueous phase was extracted with EtOAc (2×30 mL). The combined organic phases were washed with saturated aqueous NaCl (50 mL), dried over sodium sulfate, filtered and concentrated in vacuo. The crude product was purified by column chromatography (50 g of silica gel, 0 to 50% EtOAc in hexanes) to afford tert-butyl (3R)-3-(((methylsulfonyl)(phenyl)amino)methyl)-4-(5-(2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl)-2-pyrimidinyl)-1-piperazinecarboxylate (0.464 g) as a light-brown solid.

Provenance & Evidence