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Volumn 18, Issue 16, 2008, Pages 4573-4577

Aminoquinazolines as TRPV1 antagonists: Modulation of drug-like properties through the exploration of 2-position substitution

Author keywords

Aminoquinazolines; Antagonists; TRPV1; VR1

Indexed keywords

QUINAZOLINE DERIVATIVE; VANILLOID RECEPTOR 1;

EID: 48649096712     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2008.07.036     Document Type: Article
Times cited : (19)

References (25)
  • 14
    • 48649105151 scopus 로고    scopus 로고
    • Zheng, X.; Blum, C. A.; Hodgetts, K. J.; Brielmann, H.; Hutchison, A.; Chenard, B. L.; Burkamp, F.; Jones, A. B.; Blurton, P.; Clarkson, R.; Chandrasekhar, J.; Bakthavatchalam, R.; De Lombaert, S.; Crandall, M.; Matson, D.; Cortright, D. From arylureas to biarylamides to aminoquinazolines: discovery of a novel, potent TRPV1 (VR1) antagonist. The 232nd National Meeting of the American Chemical Society, San Francisco, CA, September 12-14, 2006; MEDI 315.
    • Zheng, X.; Blum, C. A.; Hodgetts, K. J.; Brielmann, H.; Hutchison, A.; Chenard, B. L.; Burkamp, F.; Jones, A. B.; Blurton, P.; Clarkson, R.; Chandrasekhar, J.; Bakthavatchalam, R.; De Lombaert, S.; Crandall, M.; Matson, D.; Cortright, D. From arylureas to biarylamides to aminoquinazolines: discovery of a novel, potent TRPV1 (VR1) antagonist. The 232nd National Meeting of the American Chemical Society, San Francisco, CA, September 12-14, 2006; MEDI 315.
  • 15
    • 48649109330 scopus 로고    scopus 로고
    • DeSimone, R. W.; Hodgetts, K.; Krause, J. E.; White, G. PCT WO 02/08221.
    • DeSimone, R. W.; Hodgetts, K.; Krause, J. E.; White, G. PCT WO 02/08221.
  • 16
    • 48649091259 scopus 로고    scopus 로고
    • Bakthavatchalam, R.; Hutchison, A.; DeSimone, R. W.; Hodgetts, K.; Krause, J. E.; White, G. U.S. Patent 6,723,730, 2004.
    • Bakthavatchalam, R.; Hutchison, A.; DeSimone, R. W.; Hodgetts, K.; Krause, J. E.; White, G. U.S. Patent 6,723,730, 2004.
  • 17
    • 48649110101 scopus 로고    scopus 로고
    • note
    • Vitamin E TPGS is d-alpha-tocopheryl polyethylene glycol 1000 succinate.
  • 18
    • 48649088930 scopus 로고    scopus 로고
    • note
    • Aqueous solubility was assessed using a high-throughput format assay (HTSol) by diluting DMSO stock solutions of the test article into pH 7.4 buffer and shaking for 4 h at room temperature. Solutions were then filtered and analyzed (HPLC/MS).
  • 19
    • 48549115181 scopus 로고    scopus 로고
    • note
    • There is ample precedent for successfully using phosphate pro-drugs for the parenteral delivery of poorly water-soluble drugs. Preliminary in vitro experiments in our laboratory suggested that in fact the phosphate group on 22 could be readily cleaved in the presence of alkaline phosphatase. Phosphatase cleavage experiments: 550 μmol of substrate 22, 20 μL of calf intestine alkaline phosphatase (equiv to 20 U), and 150 μL of buffer (pH 7.6), at 40 °C for 2 h. Disappearance of 22 and appearance of 17 were monitored by HPLC.
  • 20
    • 48649085091 scopus 로고    scopus 로고
    • note
    • Octanol-water partition coefficients (c log P) were calculated using the BioByte ClogP 4.0 estimator, as implemented in the Daylight Chemical Information System software, v. 4.71. Daylight Chemical Information Systems, Mission Viejo, CA.
  • 21
    • 48649083375 scopus 로고    scopus 로고
    • note
    • a values were determined potentiometrically.
  • 23
    • 48649088797 scopus 로고    scopus 로고
    • note
    • Compounds were incubated with pooled human or rat liver microsomes. The rates of oxidative metabolism were measured under the following conditions: compound, 1 μM final concentration; final microsomal protein concentration approximately 1 mg/mL; NADPH, 0.5 mM; pH 7.4 sodium phosphate buffer. Incubations were performed at 39 °C and were initiated by the addition of NADPH. Samples (50 μL) were taken from each incubation well at about 0.25, 1, 5, 10, and 30 min and added to 75 μL of ice-cold acetonitrile. The aliquot mixtures were mixed and then centrifuged at 3000 rpm for 15 min. The supernatant was analyzed for parent compound using LC/MS and the percent metabolized was calculated based on disappearance of parent compound.
  • 24
    • 48649102125 scopus 로고    scopus 로고
    • note
    • Sprague-Dawley rats (n = 11-12/group) were administered vehicle, Ibuprofen, or 18 via oral gavage (2% vitamin E-TPGS vehicle) 4 h pre-test. Carrageenan (1%) was injected subcutaneously into the plantar surface of the paw 3 h pre-test. Results are expressed as % of maximum potential effect (MPE, y-axis) wherein 0% MPE is equivalent to a vehicle treatment group response and 100% MPE is equivalent to complete reversal of thermal hyperalgesia. Statistical analysis was performed by one way analysis of variance with post hoc analysis using Fisher's least significant difference test. Statistical significance was accepted as P < 0.05.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.