Sodium Bicarbonate → (S)-2-benzyl 3-ethyl 8-(2-amino-6-((R)-1-(2-bromo-4-chlorophenyl)-2,2,2-trifluoroethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate

Participants

Reaction Conditions

Reaction Steps

To a solution of (R)-4-(1-(2-bromo-4-chlorophenyl)-2,2,2-trifluoroethoxy)-6-chloropyrimidin-2-amine (100 mg, 0.24 mmol, Step 1) in dioxane (5 mL) was added (S)-2-benzyl 3-ethyl 2,8-diazaspiro[4.5]decane-2,3-dicarboxylate (100 mg, 0.29 mmol), and NaHCO3 (300 mg, 3.5 mmol). After 5 h, an additional amount of NaHCO3 (300 mg, 3.5 mmol) was added and the reaction mixture was heated to 90° C. for 36 h. The reaction was then cooled to RT and filtered. Purification by normal phase silica gel column (EtOAc/heptane) provided (S)-2-benzyl 3-ethyl 8-(2-amino-6-((R)-1-(2-bromo-4-chlorophenyl)-2,2,2-trifluoroethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate as a white solid.

Provenance & Evidence