Cl[C:2]1[N:7]=[C:6]([N:8]2[CH2:12][CH2:11][C@:10]([CH2:15][CH3:16])([C:13]#[N:14])[C:9]2=[O:17])[CH:5]=[CH:4][N:3]=1.Cl.Cl.[CH3:20][N:21]1[C:25]([CH3:26])=[C:24]([NH2:27])[CH:23]=[N:22]1>CC(O)C>[CH3:20][N:21]1[C:25]([CH3:26])=[C:24]([NH:27][C:2]2[N:7]=[C:6]([N:8]3[CH2:12][CH2:11][C@:10]([CH2:15][CH3:16])([C:13]#[N:14])[C:9]3=[O:17])[CH:5]=[CH:4][N:3]=2)[CH:23]=[N:22]1A solution of (3R)-1-(2-chloropyrimidin-4-yl)-3-ethyl-2-oxopyrrolidine-3-carbonitrile (100 mg) obtained in Step A of Example 8 and 1,5-dimethyl-1H-pyrazol-4-amine dihydrochloride (73 mg) in propan-2-ol (4.0 mL) was stirred in a microwave reactor at 160° C. for 1 hr, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (NH, hexane/ethyl acetate), and recrystallized (diisopropyl ether/ethyl acetate) to give the title compound (90 mg).
Wird geladen…