Selective phenolic acylation of 10-hydroxycamptothecin using poly (ethylene glycol) carboxylic acid

Selective phenolic acylation of 10-hydroxycamptothecin using poly (ethylene glycol) carboxylic acid Efficient and chemoselective N-acylation of 10-amino-7-ethyl camptothecin with poly(ethylene glycol) Regioselective synthesis and cytotoxicities of camptothecin derivatives modified at the 7-, 10- and 20-positions The solvolysis of topotecan in alcohols and acetic anhydride Plant antitumor agents. II. Structure of two new alkaloids from Camptotheca acuminata Novel camptothecin derivatives. part 1: oxyalkanoic acid esters of camptothecin and their in vitro and in vivo antitumor activity Synthesis of novel 10-hydroxycamptothecin derivatives utilizing topotecan hydrochloride as ortho-quinonemethide precursor Benzyl Ether-Linked Glucuronide Derivative of 10-Hydroxycamptothecin Designed for Selective Camptothecin-Based Anticancer Therapy Synthesis and preliminary bioevaluation of novel E-ring modified acetal analog of camptothecin as cytotoxic agents Synthesis of a new class of camptothecin derivatives, the long-chain fatty acid esters of 10-hydroxycamptothecin, as a potent prodrug candidate, and their in vitro metabolic conversion by carboxylesterases