[CH3:1][NH:2][C:3](=[O:19])[C:4]1[CH:9]=[C:8]([C:10]#[N:11])[C:7]([CH2:12][N:13]=[N+]=[N-])=[CH:6][C:5]=1[O:16][CH2:17][CH3:18]>O1CCCC1.N.C(P(CC)CC)C>[CH3:1][NH:2][C:3]([C:4]1[CH:9]=[C:8]2[C:7](=[CH:6][C:5]=1[O:16][CH2:17][CH3:18])[CH2:12][N:13]=[C:10]2[NH2:11])=[O:19]After dissolving N1-methyl-4-(azidomethyl)-5-cyano-2-ethoxybenzamide (931 mg) in tetrahydrofuran (10 ml), 28% aqueous ammonia (2 ml) and triethylphosphine (0.4 ml) were added in that order. The mixture was stirred at 50° C. for 15 minutes. The precipitated crystals were filtered off, washed with tetrahydrofuran, water and ethyl acetate in that order and dried to yield the title compound (365 mg).
Wird geladen…