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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/8180


    Title: Discovery, structure-activity relationship studies, and anti-nociceptive effects of 1-phenyl-3,6,6-trimethyl-1,5,6,7-tetrahydro-4H-indazol-4-one as novel opioid receptor agonists
    Authors: Cheng, MF;Ou, LC;Chen, SC;Chang, WT;Law, PY;Loh, HH;Chao, YS;Shih, C;Yeh, SH;Ueng, SH
    Contributors: Institute of Biotechnology and Pharmaceutical Research
    Abstract: The μ-Opioid receptor (MOR) is the major opioid receptor targeted by most analgesics in clinical use. However, the use of all known MOR agonists is associated with severe adverse effects. We reported that the 1-phenyl-3,6,6-trimethyl-1,5,6,7-tetrahydro-4H-indazol-4-ones are novel opioid receptor agonists. Subsequent structural modification resulted in the potent MOR/KOR (κ-opioid receptor) agonists 19, 20, and 21. Testing the analgesic effect of these in WT B6 mice (tail-flick test) gave ED50 values of 8.4, 10.9, and 26.6 mg/kg, respectively. The 1-phenyl-3,6,6-trimethyl-1,5,6,7-tetrahydro-4H-indazol-4-one core could be addressed in 1 or 2 synthetic steps with moderate to high percent of yield. In the adenylyl cyclase assay, compound 19 displayed a MOR/KOR agonist profile, with IC50 values of 0.73 and 0.41 μM, respectively. Current results suggest that compound 19 is a promising lead to go further development and in vitro / in vivo adverse effects studies.
    Date: 2014-09
    Relation: Bioorganic and Medicinal Chemistry. 2014 Sep;22(17): 4694-4703.
    Link to: http://dx.doi.org/10.1016/j.bmc.2014.07.012
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0968-0896&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000341293300019
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84906936838
    Appears in Collections:[翁紹華] 期刊論文
    [葉修華] 期刊論文
    [石全(2014-2017)] 期刊論文
    [趙宇生(2002-2013)] 期刊論文

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