Synthesis and cytotoxic activity of alkylidene- and alkyl-substituted camptothecins

Synthesis and cytotoxic activity of alkylidene- and alkyl-substituted camptothecins Synthesis and cytotoxic activity of new 9-substituted camptothecins Synthesis and antitumor activity of 7-ethyl-9-alkyl derivatives of camptothecin Synthesis and antitumor activity of a new class of water soluble camptothecin derivatives Novel 7-Substituted Camptothecins with Potent Antitumor Activity Synthesis and preliminary bioevaluation of novel E-ring modified acetal analog of camptothecin as cytotoxic agents Synthesis and in vitro cytotoxicity of hexacyclic camptothecin analogues Synthesis and in vitro cytotoxicity of C(20)(RS)-camptothecin analogues modified at both B (or A) and E ring Synthesis and cytotoxic activity of substituted Luotonin A derivatives Design and one-pot synthesis of new 7-acyl camptothecin derivatives as potent cytotoxic agents