Cesium carbonate → 2-(4-((1R,2R)-2-(((3,5-difluoro-4-(methylsulfonyl)benzyl)oxy)methyl)cyclopropyl)piperidin-1-yl)-5-(methoxymethyl)pyrimidine

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Reaction Steps

4-((1R,2R)-2-(((3,5-difluoro-4-(methylsulfonyl)benzyl)oxy)methyl)cyclopropyl)piperidine hydrochloride (Step C product, 100 mg, 0.25 mmol) was dissolved in DMSO (3 ml) at RT under N2 and Cs2CO3 (288 mg, 0.884 mmol) was added. The mixture was stirred at RT for 5 min and 2-chloro-5-methoxymethylpyrimidine (Intermediate 18, 48 mg, 0.3 mmol) in DMSO (0.5 mL) was added. The mixture was stirred at 60° C. overnight. The mixture was diluted with EtOAc, washed with sat. NH4Cl, dried over MgSO4, and evaporated to dryness. The crude material was purified by preparative TLC (60% EtOAc in hexane) to afford 50.5 mg (41.5%) of the desired product. LC/MS (m/z): 482 (M+H)±1H NMR (500 MHz, CDCl3) δ 8.30 (s, 2H), 7.15 (dd, 2H), 4.80-4.64 (m, 4H), 4.25 (s, 2H), 3.60 (m, 2H), 3.37 (s, 3H), 3.35 (s, 3H), 2.93-2.80 (m, 2H), 1.96-1.80 (m, 2H), 1.40-1.10 (m, 4H), 0.94-0.71 (m, 2H), 0.12-0.08 (m, 1H).

Provenance & Evidence