Cesium carbonate → 2-benzyl 3-ethyl 8-(4-((R)-1-(4-chloro-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethoxy)pyridin-2-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate

Participants

Reaction Conditions

Reaction Steps

To a solution of (R)-2-chloro-4-(1-(4-chloro-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethoxy)pyridine (227 mg, 0.57 mmol) in 1,4-dioxane (5 mL) was added 2-benzyl 3-ethyl 2,8-diazaspiro[4.5]decane-2,3-dicarboxylate (237 mg, 0.68 mmol), Cs2CO3 (557 mg, 1.71 mmol), BINAP (142 mg, 0.23 mmol), and Pd2(dba)3. The reaction was heated to 60° C. for 3 d, then cooled to RT, and concentrated in vacuo. Purification by normal phase silica gel column (EtOAc/heptane) provided 2-benzyl 3-ethyl 8-(4-((R)-1-(4-chloro-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethoxy)pyridin-2-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate as a white solid.

Provenance & Evidence