(2S)-8-[2-amino-6-[(1R)-1-[4-bromo-2-(3-methylpyrazol-1-yl)phenyl]-2,2,2-trifluoro-ethoxy]pyrimidin-4-yl]-3-benzyloxycarbonyl-3,8-diazaspiro[4.5]decane-2-carboxylic acid → HCID 117952451, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (2S)-8-[2-amino-6-[(1R)-1-[4-bromo-2-(3-methylpyrazol-1-yl)phenyl]-2,2,2-trifluoro-ethoxy]pyrimidin-4-yl]-3-benzyloxycarbonyl-3,8-diazaspiro[4.5]decane-2-carboxylic acid (74 mg, 0.10 mmol, Step 2) in EtOH (4 mL) was added KHCO3 (84 mg, 1.0 mmol). The reaction mixture was degassed, fitted with a 1 atm CO balloon, then treated with PdCl2(PPh3)2 (14 mg, 0.02 mmol). The reaction was degassed once more with 1 atm CO and then heated to 80° C. for 12 h. The reaction was cooled to RT, concentrated in vacuo and the residue was partitioned between water and EtOAc, and extracted. The combined organic layers were washed with brine, dried over Na2SO4, filtered, and concentrated in vacuo. Purification by normal phase silica gel column (CH2Cl2/AcOH/EtOH) provided (2S)-8-[2-amino-6-[(1R)-1-[4-ethoxycarbonyl-2-(3-methylpyrazol-1-yl)phenyl]-2,2,2-trifluoro-ethoxy]pyrimidin-4-yl]-3-benzyloxycarbonyl-3,8-diazaspiro[4.5]decane-2-carboxylic acid as a white solid.

Provenance & Evidence