Twelve new bis-Schiff bases of isatin, benzylisatin and 5-fluoroisatin 3a-3l were prepared by condensation of isatin, benzylisatin and 5-fluoroisatin with primary aromatic amines. The chemical structures of the products were confirmed by 1H- and 13CNMR, IR and mass spectral data. The compounds were screened for antiviral activity against a panel of DNA and RNA viruses. Minimum cytotoxic and minimum virusinhibitory concentrations of these compounds were determined. Compounds 3c and 3i were the most cytotoxic in HEL cells. These newly synthesized bis-Schiff bases were also tested for their antibacterial and antifungal activities. They did not display activity against S. cerevisiae (ATCC 28383) or C. albicans (CIP 1180-79).
十二种新型双Schiff碱3a-3l是通过伊萨丁、苄基伊萨丁和5-
氟伊萨丁与初级芳香胺的缩合反应制备的。产品的
化学结构通过1H-NMR、13C-NMR、红外光谱和质谱数据得到了确认。这些化合物被筛选出对一系列DNA和RNA病毒的抗病毒活性。确定了这些化合物的最小细胞毒性浓度和最小抑病毒浓度。化合物3c和3i在HEL细胞中表现出最高的细胞毒性。这些新合成的双Schiff碱也被测试了其抗菌和抗真菌活性。它们对酵母菌(S. cerevisiae, A
TCC 28383)或白念珠菌(C. albicans,
CIP 1180-79)未显示活性。