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publicationNumber US-4894456-A
titleOfInvention Synthesis of camptothecin and analogs thereof
abstract A method for synthesizing camptothecin and camptothecin analogs using a novel hydroxyl-containing tricyclic intermediate and the camptothecin analogs produced by the process. The camptothecin analogs are effective inhibitors of topoisomerase I and show anti-leukemic and anti-tumor activity.
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