[CH3:1][C:2]1[C:7]2[NH:8][C:9](=[O:12])[CH2:10][O:11][C:6]=2[CH:5]=[CH:4][C:3]=1[N+:13]([O-:15])=[O:14].[CH3:16]C1C([N+]([O-])=O)=CC2NC(=O)COC=2C=1.C[Mg]Br>>[CH3:1][C:2]1[C:7]2[NH:8][C:9](=[O:12])[CH2:10][O:11][C:6]=2[CH:5]=[C:4]([CH3:16])[C:3]=1[N+:13]([O-:15])=[O:14]The title compound is synthesized from 5-methyl-6-nitro-3-oxo-3,4-dihydro-(2H)-1,4-benzoxazine or from 7-methyl-6-nitro-3-oxo-3,4-dihydro-(2H)-1,4-benzoxazine and methyl magnesium bromide using the method illustrated in Example 37.
Wird geladen…