Lithium hydroxide, monohydrate → Lithium 2-(4-(2-(2-((4-(1-(tert-butoxycarbonyl)piperidin-4-yl)phenyl)amino)-5-(trifluoro-methyl)pyrimidin-4-yl)ethyl)pyrimidin-5-yl)acetate

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Reaction Steps

LiOH.H2O (0.020 g, 0.468 mmol) was added to a solution of tert-butyl 4-(4-((4-(2-(5-(2-ethoxy-2-oxoethyl)pyrimidin-4-yl)ethyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)phenyl)piperidine-1-carboxylate (I112) (0.096 g, 0.156 mmol) in THF (7 mL), water (1.5 mL) and methanol (1 mL) and the resulting mixture was allowed to stir at room temperature for 18 hours. The volatiles were removed in vacuo and the residue was diluted with EtOAc (70 mL) and 2 M aqueous NaOH (80 mL). The layers were separated and the aqueous layer was extracted with EtOAc (2×70 mL), the combined organics were washed with brine (70 mL), dried (MgSO4), filtered and concentrated under reduced pressure to give the title compound (I113) (0.096 g, quantitative) as a pale yellow solid. LCMS Method C: rt 6.19 min; m/z 587.1 [M+H]+.

Provenance & Evidence