Chemical Modification of Antitumor Alkaloids, 20(S)-Camptothecin and 7-Ethylcamptothecin: Reaction of the E-Lactone Ring Portion with Hydrazine Hydrate.
Chemical Modification of Antitumor Alkaloids, 20(S)-Camptothecin and 7-Ethylcamptothecin: Reaction of the E-Lactone Ring Portion with Hydrazine Hydrate.