反应详情

To a solution of (R)-1-(4-chloro-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethanol (380 mg, 1.3 mmol) in 10 mL of THF was added NaH (60 mg, 1.4 mmol) and the reaction was stirred at RT for 30 min. After this time, 2-benzyl 3-ethyl 8-(4-amino-6-chloro-1,3,5-triazin-2-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate (product from Step 1, Example 39a) (570 mg, 1.2 mmol) was added and the reaction was heated to 50° C. for 12 h. After this time, the reaction was cooled to RT, quenched with methanol and concentrated in vacuo. Normal phase silica gel chromatography (EtOAc/heptane) provided 2-benzyl 3-ethyl 8-(4-amino-6-((R)-1-(4-chloro-2-(3-methyl-1H-pyrazol-1-yl)phenyl)-2,2,2-trifluoroethoxy)-1,3,5-triazin-2-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate as a white solid.

1. temperaturethe reaction was heated to 50° C. for 12 h
2. temperatureAfter this time, the reaction was cooled to RT
3. customquenched with methanol
4. concentrationconcentrated in vacuo