Antitumor Agents 253. Design, Synthesis, and Antitumor Evaluation of Novel 9-Substituted Phenanthrene-Based Tylophorine Derivatives as Potential Anticancer Agents
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文摘
C9-Substituted phenanthrene-based tylophorine derivatives (PBTs) (13-36) were synthesized and evaluatedas in vitro anticancer agents against the human A549 lung cancer cell line. Twelve active compounds werefurther examined against DU-145 (prostate), ZR-751 (breast), KB (nasopharyngeal), and KB-Vin (multidrugresistant KB subline) human cancer cell lines. They showed potent cytotoxic activity against both wild typeand matched multidrug resistant KB cell lines, and displayed notable selectivity toward DU-145 (prostate)and ZR-751 (breast) cancer cell lines. The mode of action of this class may be distinctly different from thatof other cancer chemotherapeutic compounds. Three PBT analogs were also evaluated in a murine model.Compound 24b showed modest in vivo antitumor activity against human A549 xenograft in nude mice aswell as potent in vitro cytotoxic activity, and thus, is a promising anticancer lead compound.

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