tert-butyl N-(2-amino-2-phenylethyl)carbamate → HCID 178453675, 화합물

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The mixture of {4-[3-(2-methanesulfinyl-pyrimidin-4-yl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester (from Example 9 supra) (300 mg, 0.64 mmol) and (2-amino-2-phenyl-ethyl)-carbamic acid tert-butyl ester (from Example 1 supra) (600 mg, 2.5 mmol) was heated at 130° C. with stirring for 2 hours. The resulting oil was purified by chromatography (silica gel, 8 g, 200-300 mesh, eluting with dichloromethane:methanol, 50:1 to 30:1) and then further purified by prep-HPLC to afford (4-{3-[2-(2-tert-butoxycarbonylamino-1-phenyl-ethylamino)-pyrimidin-4-yl]-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino}-cyclohexyl)-carbamic acid tert-butyl ester. (Yield 35 mg, 8.5%).

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