Cesium carbonate → (S)-8-(2-amino-6-((R)-2,2,2-trifluoro-1-(3'-methoxy-4'-(methoxycarbonyl)-3-(3-methyl-1H-pyrazol-1-yl)-[1,1'-biphenyl]-4-yl)ethoxy)pyrimidin-4-yl)-2-((benzyloxy)carbonyl)-2,8-diazaspiro[4.5]decane-3-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

To a solution of (S)-8-(2-amino-6-((R)-1-(4-bromo-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethoxy)pyrimidin-4-yl)-2-((benzyloxy)carbonyl)-2,8-diazaspiro[4.5]decane-3-carboxylic acid (product of Step 3, Example 10m) (135 mg, 0.18 mmol) in dioxane (2 mL) was added (3-methoxy-4-(methoxycarbonyl)phenyl)boronic acid (84 mg, 0.4 mmol) and Cs2CO3 (48 mg, 0.16 mmol). The reaction was heated to 80° C. for 16 h, cooled to RT, and filtered. The solvent was removed in vacuo. Purification via normal phase silica gel chromatography (CH2Cl2/Heptane) provided (S)-8-(2-amino-6-((R)-2,2,2-trifluoro-1-(3′-methoxy-4′-(methoxycarbonyl)-3-(3-methyl-1H-pyrazol-1-yl)-[1,1′-biphenyl]-4-yl)ethoxy)pyrimidin-4-yl)-2-((benzyloxy)carbonyl)-2,8-diazaspiro[4.5]decane-3-carboxylic acid as an off-white solid.

Provenance & Evidence