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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 10
BKCSDE 32(10)
October 20, 2011

Title	Synthesis and Biological Evaluation of Phenoxy-N-phenylacetamide Derivatives as Novel P-glycoprotein Inhibitors
Author	Kyeong Lee, Sang Hee Roh, Yan Xia, Keon Wook Kang,
Keywords	Pgp, Chemotherapy, MDR reversal activity, Phenoxy-N-phenylacetamide derivatives
Abstract	Overexpression of P-glycoprotein (Pgp) is associated with multidrug resistance (MDR) of tumor cells to a number of chemotherapeutic drugs. Pgp inhibitors have been shown to effectively reverse Pgp-mediated MDR. We prepared a series of phenoxy-N-phenylacetamide derivatives and tested for their ability to inhibit Pgp as potential MDR reversing agents, using a Pgp over-expressing MCF-7/ADR cell line. Some of the synthesized compounds exhibited moderate to potent reversal activity. Of note, compound 4o showed a 3.0-fold increased inhibition compared with verapamil, a well-known Pgp inhibitor. In addition, co-treatment of the representative compound 4o and a substrate anticancer agent doxorubicin resulted in a remarkable increase in doxorubicin's antitumor effect and inhibition of DNA synthesis in the MCF-7/ADR cell line. Taken together, these findings suggest that compound 4o could be a useful lead for development of a novel Pgp inhibitor for treatment of MDR.
Page	3666 - 3674
Full Text	PDF

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