Ethylenediamine → 4-{3-(cyanomethyl)-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-1-yl}-N-[4-fluoro-2-(trifluoromethyl)phenyl]piperidine-1-carboxamide

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Reaction Steps

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-[4-fluoro-2-(trifluoromethyl)phenyl]piperidine-1-carboxamide (210 mg, 0.3 mmol) was dissolved in a 50 M solution of trifluoroacetic acid in methylene chloride (20 mL). After being stirred at room temperature for one hour, the solvents were removed under reduced pressure. The residue was dissolved in methanol (20 mL) and ethylenediamine (1.0 g, 17 mmol). After being stirred at room temperature for one hour, the mixture was purified by HPLC (method B) to give 4-{3-(cyanomethyl)-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-1-yl}-N-[4-fluoro-2-(trifluoromethyl)phenyl]piperidine-1-carboxamide as a white powder. LC-MS: 568.1 (M+H)+. 1H NMR (400 MHz, DMSO-d6): δ 12.10 (s, 1H), 8.76 (s, 1H), 8.63 (s, 1H), 8.36 (s, 1H), 8.18 (s, 1H), 7.55 (d, J=3.6 Hz, 1H), 7.50 (m, 1H), 7.43 (m, 1H), 7.34 (m, 1H), 7.01 (d, J=3.6 Hz, 1H), 3.79 (m, 2H), 3.67 (d, J=8 Hz, 2H), 3.51 (m, 4H), 2.92 (m, 2H), 2.38 (m, 1H), 1.62 (m, 2H), 1.09 (m, 2H).

Provenance & Evidence