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Volumn 17, Issue 15, 2007, Pages 4284-4289

Synthesis and structure-activity relationship of imidazo(1,2-a)thieno(3,2-e)pyrazines as IKK-β inhibitors

Author keywords

IKK; Imidazothienopyrazine; NF B; TNF

Indexed keywords

I KAPPA B KINASE BETA; I KAPPA B KINASE BETA INHIBITOR; IMIDAZO(1,2 A)THIENO(3,2 E)PYRAZINE DERIVATIVE; PYRAZINE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 34347394507     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2007.05.031     Document Type: Article
Times cited : (39)

References (28)
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    • For a discussion on what is termed as the classical and non-classical NF-κB signaling pathways, see:
    • For a discussion on what is termed as the classical and non-classical NF-κB signaling pathways, see:. Hoffmann A., Natoli G., and Ghosh G. Oncogene 25 (2006) 6706
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    • It is well documented that the metabolic activation of polycyclic aromatic hydrocarbons results in electrophilic species which could alkylate proteins and DNA. For additional information, see: and ref. cited therein
    • It is well documented that the metabolic activation of polycyclic aromatic hydrocarbons results in electrophilic species which could alkylate proteins and DNA. For additional information, see:. Skupinska K., Misiewicz I., and Kasprzycka-Guttman T. Acta Pol. Pharm. Drug Res. 61 (2004) 233 and ref. cited therein
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    • note
    • Bromochloride 3 was prepared according to the protocol described in Lumma et al. (J. Med. Chem. 1983, 26, 357) with the exception that the NCS-chlorination step was replaced with NBS-bromination and that Swern conditions were employed for the oxidation step.
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    • note
    • For experimental details, see: Belema, M.; Bunker, A.; Nguyen, N.; Beaulieu, F.; Ouellet, C.; Marinier, A.; Roy, S.; Yang, X.; Qiu, Y.; Zhang, Y.; Martel, A.; Zusi, F. C. US patent 6,933,294 B2.
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    • For the IKK-α and IKK-β enzyme assays, see Ref. 6a.
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    • For the Jurkat cell assay, see: Burke, J. R.; Wang, S. US Patent Appl. 2005/0095616 A1.
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    • note
    • The Alamar blue assay was conducted according to the protocol described in Zhi-Jun et al. (J. Immunol. Methods 1997, 210, 25) by using reagents obtained from Biosource International.
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    • Although enzyme kinetics studies, described in Ref. 6a, indicated that compound 1 is probably an allosteric site inhibitor of IKK-β, the mode of action of the current class has not been elucidated. For a discussion on the role of proximal H-bond acceptor/H-bond donor moieties in determining the interaction of inhibitors with the hinge region of kinases, see:. Babine R.E., and Abdel-Meguid S.S. (Eds), Wiley-VCH, Verlag GmbH & Co. KGaA: Weinheim (Chapter 2)
    • Although enzyme kinetics studies, described in Ref. 6a, indicated that compound 1 is probably an allosteric site inhibitor of IKK-β, the mode of action of the current class has not been elucidated. For a discussion on the role of proximal H-bond acceptor/H-bond donor moieties in determining the interaction of inhibitors with the hinge region of kinases, see:. Adams J.L., Veal J., and Shewchuk L. In: Babine R.E., and Abdel-Meguid S.S. (Eds). Protein Crystallography in Drug Discovery (2004), Wiley-VCH, Verlag GmbH & Co. KGaA: Weinheim (Chapter 2)
    • (2004) Protein Crystallography in Drug Discovery
    • Adams, J.L.1    Veal, J.2    Shewchuk, L.3
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    • note
    • 50 ratio >10, and no compelling SAR has emerged that could explain the difference in enzyme selectivity among the various analogs. Compounds 13b, 20a, and 20h were screened against a panel of kinases (IKK-ε, p38, Her-1 and 2, LCK, EMT, VEGF, IGF-1R, and PKA) and no appreciable activities were observed (data not shown).
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    • note
    • For additional PK parameters of 1, see Ref. 6a.
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    • note
    • The general procedure of Ghezzi et al. (Cytokine 2000, 12, 1205), as described in Ref. 6a, was employed to evaluate the effects of compounds on LPS-induced TNF-α release in mice.
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    • note
    • The PBMC assay was conducted as described by Leftheris et al. J. Med. Chem. 2004, 47, 6283.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.