Synthesis and Antitumor Activity of 20(S)-Camptothecin Derivatives. A-Ring-Substituted 7-Ethylcamptothecins and Their E-Rig-Modified Water-Soluble Derivatives.
Synthesis and Antitumor Activity of 20(S)-Camptothecin Derivatives. A-Ring-Substituted 7-Ethylcamptothecins and Their E-Rig-Modified Water-Soluble Derivatives.