摘要:
A series of water-soluble beta-carbolines, bearing a flexible amino side chain, was prepared and evaluated in vitro against a panel of human tumor cell lines. The N-9-arylated alkyl substituted beta-carbolines represented the most interesting cytotoxic activities, and compound 7b was found to be the most potent antitumor agent with IC50 values lower than 10 mu M against eight human tumor cell lines. The results confirmed that the N-9-arylated alkyl substituents of beta-carboline nucleus played an important role in the modulation of the cytotoxic potencies. In addition, these compounds were found to exhibit significant DNA-binding affinity. (c) 2010 Published by Elsevier Ltd.