| 摘要 |
<p>A compound of the following formula: <CHEM> and its pharmaceutically acceptable salt thereof, wherein R<1> and R<2> are independently hydrogen, C1-4 alkyl, C3-7 cycloalkyl, C2-4 alkenyl, C1-4 alkoxy-C1-4 alkyl, C1-4 alkylthio-C1-4 alkyl, phenyl, phenyl-C1-4alkyl, halo-substituted C1-4 alkyl, C3-7 cycloalkyl-C1-3 alkyl or hydroxy-C1-4alkyl ; or R<1> and R<2> are taken together with the nitrogen to which they are attached and form optionally substituted, saturated or unsaturated 3-, 4-, 5-, 6- or 7- membered heterocyclic cantaining one to two heteroatoms, provided that the heterocyclic is not pyrrolidinyl; R<3> is hydrogen, C1-4 alkyl or a hydroxy protecting group; Ar is optionally substituted phenyl or phenyl-C1-3 alkyl; and X is optionally substituted phenyl, naphthyl, biphenyl, indanyl, benzofuranyl, benzothiophenyl, 1-tetralone-6-yl, C1-4 alkylenedioxy, pyridyl, furyl or thienyl. These compounds and pharmaceutical compositions containing them are useful as analgesic, antiinflammatory, diuretic, antitussive, anesthetic or neuroprotective agents, or an agent for treatment of stroke or functional bowel disease such as abdominal pain, for the treatment of a mammalian subject, especially a human subject.</p> |
