Scheme 1.
Synthesis of sulfadiazine Schiff bases 2 (MeOH = methanol; R = H, 5-F, 5-Cl, 5-Br, 5-I, 5-NO2, 5-Me, 5-MeO, 5-OH, 5-tert-Bu, 3-Cl, 6-Cl, 3,5-Cl2, 3-Br-5-Cl, 3-I-5-Cl, 3,5-I2).
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