1,8-Diazabicyclo(5.4.0)undec-7-ene → 3-methyl-3-[4-(3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1H-pyrazol-1-yl]butanenitrile

Participants

Reaction Conditions

Reaction Steps

3-Methylbut-2-enenitrile (179 mg, 1.57 mmol) and DBU (143 mg, 0.94 mmol) were added to a stirred solution of N-[3-methyl-5-(1H-pyrazol-4-yl)phenyl]-4-(trifluoromethyl)pyrimidin-2-amine (250 mg, 0.73 mmol) in acetonitrile (3.9 mL). The mixture was heated to 75° C. overnight and concentrated under reduced pressure The residue was purified by column chromatography on silica gel to afford 3-methyl-3-[4-(3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1H-pyrazol-1-yl]butanenitrile. MS ESI calcd. for C20H20F3N6 [M+H]+ 401. found 401. 1H NMR (500 MHz, DMSO-d6) δ 10.13 (s, 1H), 8.82 (d, J=4.9 Hz, 1H), 8.27 (s, 1H), 7.91 (s, 1H), 7.84 (s, 1H), 7.32 (s, 1H), 7.26 (d, J=4.9 Hz, 1H), 7.15 (s, 1H), 3.24 (s, 2H), 2.31 (s, 3H), 1.67 (s, 6H).

Provenance & Evidence