Synthesis and biological evaluation of coumarin derivatives as selective CYP2A6 inhibitors. 2023

Yuki Yamaguchi, and Naozumi Nishizono, and Daisuke Kobayashi, and Teruki Yoshimura, and Keiji Wada, and Kenichi Kobayashi, and Kazuaki Oda
School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, 1757 Kanazawa, Tobetsu-cho, Ishikari-gun, Hokkaido 061-0293, Japan. Electronic address: y.yamagu@hoku-iryo-u.ac.jp.

Cytochrome P450 2A6 (CYP2A6) inhibitors are expected to be suitable as smoking cessation aids and for cancer prevention. Because the typical coumarin-based CYP2A6 inhibitor methoxsalen also inhibits CYP3A4, unintended drug-drug interactions are still a concern. Therefore, the development of selective CYP2A6 inhibitors is desirable. In this study, we synthesized coumarin-based molecules, determined the IC50 values for CYP2A6 inhibition, verified the possibility of mechanism-based inhibition, and compared the selectivity for CYP2A6 versus CYP3A4. The results demonstrated that we developed CYP2A6 inhibitors that were more potent and selective than methoxsalen.

UI MeSH Term Description Entries
D008730 Methoxsalen A naturally occurring furocoumarin compound found in several species of plants, including Psoralea corylifolia. It is a photoactive substance that forms DNA ADDUCTS in the presence of ultraviolet A irradiation. 8-Methoxypsoralen,Ammoidin,Xanthotoxin,8-MOP,Deltasoralen,Dermox,Geroxalen,Meladinina,Meladinine,Meloxine,Methoxa-Dome,Méladinine,Oxsoralen,Oxsoralen-Ultra,Puvalen,Ultramop,8 MOP,8 Methoxypsoralen,8MOP,Methoxa Dome,Oxsoralen Ultra
D008862 Microsomes, Liver Closed vesicles of fragmented endoplasmic reticulum created when liver cells or tissue are disrupted by homogenization. They may be smooth or rough. Liver Microsomes,Liver Microsome,Microsome, Liver
D003374 Coumarins Synthetic or naturally occurring substances related to coumarin, the delta-lactone of coumarinic acid. 1,2-Benzopyrone Derivatives,1,2-Benzopyrones,Coumarin Derivative,Coumarine,1,2-Benzo-Pyrones,Benzopyran-2-ones,Coumarin Derivatives,Coumarines,1,2 Benzo Pyrones,1,2 Benzopyrone Derivatives,1,2 Benzopyrones,Benzopyran 2 ones,Derivative, Coumarin,Derivatives, 1,2-Benzopyrone,Derivatives, Coumarin
D001189 Aryl Hydrocarbon Hydroxylases A large group of cytochrome P-450 (heme-thiolate) monooxygenases that complex with NAD(P)H-FLAVIN OXIDOREDUCTASE in numerous mixed-function oxidations of aromatic compounds. They catalyze hydroxylation of a broad spectrum of substrates and are important in the metabolism of steroids, drugs, and toxins such as PHENOBARBITAL, carcinogens, and insecticides. Microsomal Monooxygenases,Xenobiotic Monooxygenases,Hydroxylases, Aryl Hydrocarbon,Monooxygenases, Microsomal,Monooxygenases, Xenobiotic
D051544 Cytochrome P-450 CYP3A A cytochrome P-450 suptype that has specificity for a broad variety of lipophilic compounds, including STEROIDS; FATTY ACIDS; and XENOBIOTICS. This enzyme has clinical significance due to its ability to metabolize a diverse array of clinically important drugs such as CYCLOSPORINE; VERAPAMIL; and MIDAZOLAM. This enzyme also catalyzes the N-demethylation of ERYTHROMYCIN. CYP3A,CYP3A4,CYP3A5,Cytochrome P-450 CYP3A4,Cytochrome P-450 CYP3A5,Cytochrome P-450IIIA,Cytochrome P450 3A,Cytochrome P450 3A4,Cytochrome P450 3A5,Erythromycin N-Demethylase,Taurochenodeoxycholate 6-alpha-Monooxygenase,3A5, Cytochrome P450,6-alpha-Monooxygenase, Taurochenodeoxycholate,Cytochrome P 450 CYP3A,Cytochrome P 450 CYP3A4,Cytochrome P 450 CYP3A5,Cytochrome P 450IIIA,Erythromycin N Demethylase,N-Demethylase, Erythromycin,P-450 CYP3A, Cytochrome,P-450 CYP3A4, Cytochrome,P-450 CYP3A5, Cytochrome,P-450IIIA, Cytochrome,P450 3A, Cytochrome,P450 3A5, Cytochrome,Taurochenodeoxycholate 6 alpha Monooxygenase
D065607 Cytochrome P-450 Enzyme Inhibitors Drugs and compounds which inhibit or antagonize the biosynthesis or actions of CYTOCHROME P-450 ENZYMES. Cytochrome P-450 Inhibitors,Cytochrome P-450 Monooxygenase Inhibitors,Cytochrome P-450 Oxygenase Inhibitors,Cytochrome P-450-Dependent Monooxygenase Inhibitors,P-450 Enzyme Inhibitors,P450 Enzyme Inhibitors,Cytochrome P 450 Dependent Monooxygenase Inhibitors,Cytochrome P 450 Enzyme Inhibitors,Cytochrome P 450 Inhibitors,Cytochrome P 450 Monooxygenase Inhibitors,Cytochrome P 450 Oxygenase Inhibitors,Enzyme Inhibitors, P-450,Enzyme Inhibitors, P450,Inhibitors, Cytochrome P-450,Inhibitors, P-450 Enzyme,Inhibitors, P450 Enzyme,P 450 Enzyme Inhibitors,P-450 Inhibitors, Cytochrome
D065637 Cytochrome P-450 CYP2A6 A cytochrome P450 enzyme that has specificity for the 7-hydroxylation of coumarin. Cytochrome P-450 CYP-2A3,Coumarin 7-Hydroxylase,Coumarin Hydroxylase,Cytochrome P450 CYP2A6,Cytochrome P450, Family 2, Subfamily A, Polypeptide 6,Coumarin 7 Hydroxylase,Cytochrome P 450 CYP 2A3,Cytochrome P 450 CYP2A6,P450 CYP2A6, Cytochrome

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