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Discovery of Novel 5-(Piperazine-1-carbonyl)pyridin-2(1H)-one Derivatives as Orally eIF4A3-Selective Inhibitors.


ABSTRACT: Starting from our previous eIF4A3-selective inhibitor 1a, a novel series of (piperazine-1-carbonyl)pyridin-2(1H)-one derivatives was designed, synthesized, and evaluated for identification of orally bioavailable probe molecules. Compounds 1o and 1q showed improved physicochemical and ADMET profiles, while maintaining potent and subtype-selective eIF4A3 inhibitory potency. In accord with their promising PK profiles and results from initial in vivo PD studies, compounds 1o and 1q showed antitumor efficacy with T/C values of 54% and 29%, respectively, without severe body weight loss. Thus, our novel series of compounds represents promising probe molecules for the in vivo pharmacological study of selective eIF4A3 inhibition.

SUBMITTER: Mizojiri R 

PROVIDER: S-EPMC5642020 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature

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Starting from our previous eIF4A3-selective inhibitor <b>1a</b>, a novel series of (piperazine-1-carbonyl)pyridin-2(1<i>H</i>)-one derivatives was designed, synthesized, and evaluated for identification of orally bioavailable probe molecules. Compounds <b>1o</b> and <b>1q</b> showed improved physicochemical and ADMET profiles, while maintaining potent and subtype-selective eIF4A3 inhibitory potency. In accord with their promising PK profiles and results from initial in vivo PD studies, compounds  ...[more]

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