N-Substituted Oxazolo[5,4-b]pyridin-2(1H)-ones: A New Class of Non-Opiate Antinociceptive Agents
作者:Marie-Claude Viaud、Patricia Jamoneau、Christine Flouzat、Jean-Guy Bizot-Espiard、Bruno Pfeiffer、Pierre Renard、Daniel-Henri Caignard、Gerard Adam、Gerald Guillaumet
DOI:10.1021/jm00008a006
日期:1995.4
substituents and a 3-4-carbon alkyl side chain had significantly greater analgesic activity than that of the oxazolo[4,5-b]pyridin-2(3H)-one analogs. To reduce the metabolic N-dealkylation of the piperazine observed in our previous work on oxazolo[4,5-b]-pyridin-2(3H)-ones, analogs of the most active compounds with steric hindrance on the alkyl side chain were prepared and tested. The compound with the maximal
一系列的1-(氨基烷基)-和1-[(4-芳基-1-哌嗪基)烷基]恶唑并[5,4-b]吡啶-2(1H)-恶唑并[5,4-b]的一个衍生物在小鼠和大鼠中测试了对烷基侧链的长度和氨基或4-芳基-1-哌嗪基取代基进行修饰的吡啶2-2(1H)-1的安全性和镇痛效果。一些具有4-(取代或未取代的苯基)-1-哌嗪基取代基和3-4-碳烷基烷基侧链的化合物具有比oxazolo [4,5-b] pyridin-2(3H)-高的镇痛活性。一个类似物。为了减少我们先前在恶唑[4,5-b]-吡啶-2(3H)-酮上的工作中观察到的哌嗪的代谢性N-脱烷基,制备了在烷基侧链上具有位阻的最具活性的化合物的类似物和测试。具有最大安全性和止痛效果的化合物为1-[[[4-(4-氟苯基)-1-哌嗪基]丙基]恶唑并[5,4-b]吡啶-2-2(1H)-one(化合物3b) ,ED50值为5.6 mg / kg po(小鼠,苯醌扭曲试验)和0