3 years ago

Synthesis and evaluation of N-heteroaromatic ring-based analogs of piperlongumine as potent anticancer agents

Synthesis and evaluation of N-heteroaromatic ring-based analogs of piperlongumine as potent anticancer agents
Piperlongumine (PL) selectively targets a wide spectrum of cancer cells and induces their death by triggering various pathways, including apoptosis, necrosis and autophagy. However, the poor solubility is a serious concern for intensive study and clinical application. We synthesized its analogs 19 by replacement of the trimethoxyphenyl of PL with an N-heteroaromatic ring and/or not introduction of 2-Cl. These compounds improved aqueous solubility and displayed potent anticancer activity. The most active compound 9 selectively enhanced ROS levels in colon cancer cells and inhibited the cell proliferation but sparing non-tumor colon cells. Importantly, 9 significantly repressed tumor growth in an HCT-116 xenograft mouse model, suggesting that these N-heteroaromatic ring-based analogs of PL warrant further investigation.

Publisher URL: www.sciencedirect.com/science

DOI: S0223523417304920

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