反应详情

温度

80 °C

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.

1. customThe reaction mixture was degassed
2. customfitted with a 1 atm CO balloon
3. customThe reaction was degassed once more with 1 atm CO
4. temperatureThe reaction was cooled to RT
5. concentrationconcentrated in vacuo
6. customthe residue was partitioned between water and EtOAc
7. extractionextracted
8. washThe combined organic layers were washed with brine
9. dry with materialdried over Na2SO4
10. filtrationfiltered
11. concentrationconcentrated in vacuo
12. customPurification by normal phase silica gel column (CH2Cl2/AcOH/EtOH)