(S)-(+)-1-Cyclohexylethylamine → 4-{3-(Cyanomethyl)-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-1-yl}-N-[(1S)-1-cyclohexylethyl]-2-fluorobenzamide

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Reaction Steps

The 4-{3-(cyanomethyl)-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-1-yl}-2-fluorobenzoic acid (0.015 g, 0.027 mmol), N,N,N′,N′-tetramethyl-O-(7-azabenzotriazol-1-yl)uronium hexafluorophosphate (0.016 g, 0.042 mmol), and (1S)-1-cyclohexylethanamine (0.0080 mL, 0.055 mmol, Aldrich: Cat. #336513) in dry 1,2-dichloroethane (0.501 mL) (not all in solution) was stirred for 30 minutes at 60° C., then 14 hours at room temperature (all in solution). LC/MS data showed that the reaction was complete and the desired product was formed. The product was used as is without further purification. LCMS (M+H)+: m/z=657.3.

Provenance & Evidence