A series of novelpodophyllotoxinderivatives were designed using association strategy and synthesized by coupling either podophyllotoxin (1) or 4beta-amino podophyllotoxin (3) with substituted indol-3-yl-glyoxyl chlorides. Their structures were identified using spectroscopic techniques. These novelderivatives have been evaluated for cytotoxicity in vitro against four human cancer cell lines with