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Volumn 19, Issue 8, 2009, Pages 2179-2185

Discovery of betrixaban (PRT054021), N-(5-chloropyridin-2-yl)-2-(4-(N,N-dimethylcarbamimidoyl)benzamido)-5-methoxybenzamide, a highly potent, selective, and orally efficacious factor Xa inhibitor

Author keywords

[No Author keywords available]

Indexed keywords

BETRIXABAN; BLOOD CLOTTING FACTOR 10A INHIBITOR; PHENYL GROUP; POTASSIUM CHANNEL HERG; PRT 054021; UNCLASSIFIED DRUG;

EID: 63149141508     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2009.02.111     Document Type: Article
Times cited : (99)

References (51)
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    • 63149179306 scopus 로고    scopus 로고
    • Zhang, P.; Bao, L.; Zuckett, J. F.; Jia, Z. J.; Sinha, U.; Park, G.; Hutchaleelaha, A.; Scarborough, R. M.; Zhu, B.-Y. Bioorg. Med. Chem. Lett. 2009, 19, 2186, the preceding communication, doi:10.1016/j.bmcl.2009.02.114.
    • Zhang, P.; Bao, L.; Zuckett, J. F.; Jia, Z. J.; Sinha, U.; Park, G.; Hutchaleelaha, A.; Scarborough, R. M.; Zhu, B.-Y. Bioorg. Med. Chem. Lett. 2009, 19, 2186, the preceding communication, doi:10.1016/j.bmcl.2009.02.114.
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    • 0033517788 scopus 로고    scopus 로고
    • i values were determined by the method described in:
    • i values were determined by the method described in:. Betz A., Wong P.W., and Sinha U. Biochemistry 38 (1999) 14582
    • (1999) Biochemistry , vol.38 , pp. 14582
    • Betz, A.1    Wong, P.W.2    Sinha, U.3
  • 32
    • 63149131512 scopus 로고    scopus 로고
    • note
    • In vitro liver metabolic stability was determined using liver S9 fractions and expressed as half-life: Compounds (1 μM) were incubated with liver S9 proteins (1 mg/mL) and a NADPH regenerating system (NADP + glucose-6-phosphate) suspended in phosphate buffer (100 mM). Samples were taken at t = 0, 5, 10, 15 and 60 min. and added to an organic solvent to terminate the reaction. After adding an internal standard, the mixtures were centrifuged and the supernatant transferred to HPLC vials. Samples were analyzed by tandem-mass spectrometry. The change in area ratio (substrate/internal standard) between t = 0 and 15 min was used to estimate half-life. Coumarin 7-hydroxylase (CYP2A6), caffeine demethylase (CYP1A2), verapamil (CYP3A4) and/or propanolol (CYP3A4) were used as positive control. For negative controls, substrates were incubated with heat inactivated (60 min at 60 °C) liver S9 fractions.
  • 45
    • 63149138310 scopus 로고    scopus 로고
    • note
    • The rabbit 2×PT values were determined by the method described in Ref. 5(b).
  • 46
    • 63149134395 scopus 로고    scopus 로고
    • note
    • Human plasma protein binding, expressed as unbound fraction, was determined by this protocol: The compound stock solutions were diluted in 1.0 M HEPES (pH 7.4) to yield a 1.0 mM working solution. The working solution was added to plasma samples (EDTA was used as anticoagulant) in a ratio of 1/100 yielding a final concentration of 10 μM. The mixture was gently mixed and incubated at 37 °C for 30 min. At the conclusion of the incubation 3 aliquots (450 μL) each were added to a centrifugal filter device fitted to a 96 well plate. Standards were prepared in protein free human plasma and transferred to the centrifugal filter device fitted to the same plate. The plates were centrifuged for 25 min at 32 °C in a centrifuge. 15 μL each of the filtrate was transferred to a round bottom 96 well plate and 15 μL of acetonitrile including KN1022 (1 μg/mL) as internal standard was added followed by 60 μL of DI water. Plates were placed on a Multi-Tube Vortexer for 30 s and vortexed. Concentrations in the filtrate were determined by LC/MS/MS and using standard curves prepared in ultra filtrated plasma.
  • 47
    • 0031982513 scopus 로고    scopus 로고
    • Kr current generated under normoxic conditions. Interference of the potassium channel suggests that the compound could modify (shorten or prolong) the electrocardiographic (ECG) QT interval.
    • Kr current generated under normoxic conditions. Interference of the potassium channel suggests that the compound could modify (shorten or prolong) the electrocardiographic (ECG) QT interval. Zhou Z., Gong Q., Ye B., Fan Z., Makielski J.C., Robertson G.A., and January C.T. Biophys. J. 74 (1998) 230
    • (1998) Biophys. J. , vol.74 , pp. 230
    • Zhou, Z.1    Gong, Q.2    Ye, B.3    Fan, Z.4    Makielski, J.C.5    Robertson, G.A.6    January, C.T.7


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.