Preclinical study demonstrates antitumor effects of novel benzophenanthridinium salts against murine leukemias, indicating the natural alkaloid fagaronine remains the most potent derivative.
A facil synthesis of benzophenanthridinium salts has been developed and used for preparing a number of these compounds. The antitumor activities in mouse leukemia L1210 (LE) and P388 (PS) were determined as well as some selected antimicrobial activities. Although antitumor activity was exhibited by several of the derivatives, none was as active as the naturally occurring alkaloid fagaronine. Fagaronine was made available as a synthetic by an improved procedure. Some structure-activity relationships among antitumor benzophenanthridinium salts are discussed.
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Stermitz et al. (1975) studied this question.
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