反应详情

A solution of (S)-2-benzyl 3-ethyl 8-(2-amino-6-((R)-1-(5-chloro-[1,1′-biphenyl]-2-yl)-2,2,2-trifluoroethoxy)pyrimidin-4-yl)-2,8-diazaspiro[4.5]decane-2,3-dicarboxylate (from Step 3, Example 34c, 315 mg, 0.43 mmol) in acetonitrile (300 mL) was added TMSI (0.13 mL, 0.9 mmol) [Method B]. The reaction mixture was then warmed to RT for an additional 30-40 min, then cooled to 0-5° C., and 2 M HCl in diethyl ether (0.5 mL) was added. The reaction mixture was the allowed to warm RT and then concentrated in vacuo. Normal phase silica gel chromatography provide the title compound as an off-white solid.

1. temperaturecooled to 0-5° C.
2. temperatureto warm RT
3. concentrationconcentrated in vacuo