Antinociceptive Activity of the Novel Fentanyl Analogue iso-Carfentanil in Rats

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A large number of fentanyl analogues have been synthesized so far, both to establish the structure−activity−relationship(SAR)and to find novel, clinically useful antinociceptive drugs.In this study, the newly synthesized fentanyl analogue 3−carbomethoxy fentanyl(iso−carfentanil)was compared to fentanyl for its antinociceptive activity(tail−immersion test)in rats.It was revealed that the introduction of a 3−carbomethoxy group in the piperidine ring of fentanyl skeleton reduced the potency and shortened the duration of action of the parent compound, i.e., fentanyl.The antinociceptive potency of 3−carbomethoxy fentanyl is influenced mainly by the steric factor(voluminosity of the carbomethoxy group and the cis/trans isomerism), while the chemical nature of the group is probably irrelevant.This is in agreement with SAR studies of other 3−substituted fentanyl analogues.In contrast to potency, the duration of action is not affected by cis/trans isomerism.It is assumed that the time course of action of 3−carbomethoxy fentanyl is influenced by the nature of the carbomethoxy group.Since the potency and the duration of action of this novel antinociceptive compound are interesting from the aspect of SAR studies and have potential promise for clinical application, 3−carbomethoxy fentanyl deserves to be extensively evaluated.

収録刊行物

  • The Japanese journal of pharmacology

    The Japanese journal of pharmacology 84(2), 188-195, 2000-10-01

    公益社団法人 日本薬理学会

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各種コード

  • NII論文ID(NAID)
    10008185734
  • NII書誌ID(NCID)
    AA00691188
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00215198
  • NDL 記事登録ID
    5549371
  • NDL 雑誌分類
    ZS51(科学技術--薬学)
  • NDL 請求記号
    Z53-D199
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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