Bioorganic and Medicinal Chemistry Letters p. 5199 - 5202 (2015)
Update date:2022-08-05
Topics:
Singh, Rajinder
Sran, Arvinder
Carroll, David C.
Huang, Jianing
Tsvetkov, Lyuben
Zhou, Xiulan
Sheung, Julie
McLaughlin, John
Issakani, Sarkiz D.
Payan, Donald G.
Shaw, Simon J.
Structure-activity relationships have been developed around 5-bromo-8-toluylsulfonamidoquinoline 1 a hit compound in an assay for the interaction of the E3 ligase Skp2 with Cks1, part of the SCF ligase complex. Disruption of this protein-protein interaction results in higher levels of CDK inhibitor p27, which can act as a tumor suppressor. The results of the SAR developed highlight the relationship between the sulfonamide and quinoline nitrogen, while also suggesting that an aryl substituent at the 5-position of the quinoline ring contributes to the potency in the interaction assay. Compounds showing potency in the interaction assay result in greater levels of p27 and have been shown to inhibit cell growth of two p27 sensitive tumor cell lines.
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