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Volumn 21, Issue 3, 2011, Pages 892-898

Structure-activity studies of a novel series of isoxazole-3-carboxamide derivatives as TRPV1 antagonists

Author keywords

Antihyperalgesia; Hyperthermia; Isoxazoles; TRPV1 antagonist

Indexed keywords

ISOXAZOLE 3 CARBOXAMIDE DERIVATIVE; ISOXAZOLE DERIVATIVE; UNCLASSIFIED DRUG; VANILLOID RECEPTOR 1 ANTAGONIST;

EID: 78751646048     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2010.12.092     Document Type: Article
Times cited : (21)

References (29)
  • 19
    • 78751644429 scopus 로고    scopus 로고
    • note
    • 2+ can flow through the open channel and stimulate intracellular fluorescence. Conversely, if the TRPV1 channel is exposed to the agonist capsaicin, in the presence of antagonism from the test compound, the channel will remain closed and intracellular fluorescence will not occur. In this way the same TRPV1 transfected cell line and assay can be used to search for both agonists and antagonists. Results are an average of at least two independent experiments with three replicates at each concentration.
  • 21
    • 78751648075 scopus 로고    scopus 로고
    • note
    • Aqueous solubilities were determined using a medium-throughput adaptation of a shake-flask methodology. A 10 mM solution of the test compound in DMSO was added to 0.05 M phosphate buffered saline pH 7.4 such that the final concentration of DMSO was 2%. The resultant mixture was then vortex mixed (1500 rpm) for 24 ± 0.5 h at 21 ± 2 °C. After mixing, the resultant solution/suspension was filtered under vacuum using a filter plate (Millipore Multiscreen HTS, 0.4 μM). The concentration of the compound in the filtrate was determined by High Performance Liquid Chromatography (HPLC) running a generic acid gradient method with UV detection at 230 nm. Peak areas from analysis of the diluted filtrates were quantified by comparison to a calibration line prepared by injecting onto the HPLC three different volumes of a 50 μM solution of the test compound in DMSO. Solubilities were determined in duplicate for each test compound and average values reported.
  • 22
    • 78751646352 scopus 로고    scopus 로고
    • PERCH software Version 1/2005, PERCH Solutions Ltd, Kuopio, Finland
    • PERCH software Version 1/2005, PERCH Solutions Ltd, Kuopio, Finland.
  • 23
    • 0035425705 scopus 로고    scopus 로고
    • note
    • Methodology adapted from Vellani, V.; Mapplebeck, S.; Moriondo, A.; Davis, J. B.; McNaughton, P. A. J. Physiol. 2001, I, 813-825. Primary cultures of rat dorsal root ganglion neurones were prepared from adult Wistar rats. Standard whole-cell patch clamp recordings were made from neurones on days 2-4 in culture. The neurones were exposed to capsaicin (500 nM) applied through a local perfusion system for 1 s, repeated every 30 s. Capsaicin evoked an inward current which typically showed a brief period of runup in amplitude before stabilizing. Once the amplitude was stable, test compounds were applied through the local perfusion system. Compounds were applied until the amplitude was judged to have plateaued over at least three successive capsaicin applications.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.