A series of indane-type acetamide and propanamide analogues were investigated as TRPV1 antagonists. The analysis of structure-activity relationship indicated that indane A-region analogues exhibited better antagonism than did the corresponding 2,3-dihydrobenzofuran and 1,3-benzodioxole surrogates. Among them, antagonist 36 exhibited potent and selective antagonism toward capsaicin for hTRPV1 and mTRPV1. Further, in vivo studies indicated that antagonist 36 showed excellent analgesic activity in both phases of the formalin mouse pain model and inhibited the pain behavior completely at a dose of 1 mg/kg in the 2nd phase.
机构:
Glenmark Res Ctr, Navi Mumbai 400709, IndiaMonmouth Med Ctr, Dept Pathol, Long Branch, NJ 07740 USA
Khairatkar-Joshi, Neelima
Szallasi, Arpad
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机构:
Monmouth Med Ctr, Dept Pathol, Long Branch, NJ 07740 USA
Drexel Univ, Coll Med, Dept Pathol, Philadelphia, PA 19102 USAMonmouth Med Ctr, Dept Pathol, Long Branch, NJ 07740 USA