C1C=CC(O[C:8]([O:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[N:9][C:10]#[N:11])=CC=1.[CH3:19][O:20][C:21]1[CH:27]=[CH:26][C:24]([NH2:25])=[CH:23][CH:22]=1>C(O)(C)C>[CH3:19][O:20][C:21]1[CH:27]=[CH:26][C:24]([NH:25][C:8](=[N:9][C:10]#[N:11])[O:12][C:13]2[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=2)=[CH:23][CH:22]=1A slurry of diphenyl cyancarbonimidate (1 g) in isopropanol (10 mL) was treated with 4-methoxyaniline (517 mg). After stirring at room temperature for a further 2.5 hours the reaction mixture was filtered. The insoluble material was washed with isopropanol to give the title compound (778 mg) as a white solid, which was used without further purification.
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