1-Phenethylamine, (-)- → (1S)-N-(1-Phenylethyl)-[4-[6-[3-(trifluoromethyl)phenyl]-1H-pyrazolo[3,4-b]pyridin-5-yl]pyrimidin-2-yl]amine

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A mixture of 5-[2-(methylsulfonyl)pyrimidin-4-yl]-6-[3-(trifluoromethyl)phenyl]-1H-pyrazolo[3,4-b]pyridine (0.55 g, 0.13 mmol, obtained in example 127) and (1S)-1-phenylethylamine (0.16 g, 1.3 mmol) was heated to 100° C. for 1 h. It was allowed to cool and the crude product obtained was purified by chromatography on silica gel using increasing polarity mixtures of EtOAc-hexane as eluent, to afford 10 mg of the title compound (yield: 16%).

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