[NH2:1]/[C:2](=[N:4]\[O:5][C:6]([C:8]1[CH:9]=[C:10]([CH:15]=[CH:16][N:17]=1)[C:11]([O:13][CH3:14])=[O:12])=O)/[CH3:3]>C1(C)C=CC=CC=1>[CH3:3][C:2]1[N:1]=[C:6]([C:8]2[CH:9]=[C:10]([CH:15]=[CH:16][N:17]=2)[C:11]([O:13][CH3:14])=[O:12])[O:5][N:4]=1A solution of (Z)-methyl 2-((1-aminoethylideneaminooxy)carbonyl)isonicotinate in toluene (1 L) was heated at reflux overnight. The obtained mixture was evaporated and purified by silica gel column chromatography to afford methyl 2-(3-methyl-1,2,4-oxadiazol-5-yl)isonicotinate as a white solid.
Wird geladen…