Cl[C:2]1[N:7]=[C:6]([N:8]2[CH2:13][CH2:12][CH:11]([CH:14]3[CH2:19][CH2:18][N:17]([C:20]4[CH:25]=[N:24][C:23]([CH3:26])=[CH:22][N:21]=4)[CH2:16][CH2:15]3)[CH2:10][CH2:9]2)[CH:5]=[C:4]([CH3:27])[N:3]=1.C1(P(C2C=CC=CC=2)CCCCCP(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[CH3:59][N:60](C)CCN(C)C.[C-]#N.[K+]>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.C1(C)C=CC=CC=1>[CH3:27][C:4]1[CH:5]=[C:6]([N:8]2[CH2:13][CH2:12][CH:11]([CH:14]3[CH2:19][CH2:18][N:17]([C:20]4[CH:25]=[N:24][C:23]([CH3:26])=[CH:22][N:21]=4)[CH2:16][CH2:15]3)[CH2:10][CH2:9]2)[N:7]=[C:2]([C:59]#[N:60])[N:3]=1The 1-(2-chloro-6-methylpyrimidin-4-yl)-1′-(5-methylpyrazin-2-yl)-4,4′-bipiperidine (700 mg, 1.8 mmol) was placed in a pressure tube and anhydrous toluene (4 mL) added. To the stirred solution was added: palladium(II) acetate (41 mg, 0.18 mmol), 1,5-bis(dipenylphosphino)pentane (159 mg, 0.36 mmol), N,N,N′,N′-tetramethylethylenediamine (0.11 mL, 0.724 mmol), and potassium cyanide (235 mg, 3.62 mmol). The vessel was degassed with N2, sealed and heated at 140° C. for 16 hours. The mixture was allowed to cool to r.t., diluted with ethyl acetate (50 mL), washed with brine (10 mL×1), dried over magnesium sulfate, filtered and concentrated in vac. The residue was purified by chromatography on silica gel with 20% acetone: hexanes to yield the title compound.
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