Orally active ghrelin receptor inverse agonists and their actions on a rat obesity model
作者:Bitoku Takahashi、Hideaki Funami、Takehiko Iwaki、Hiroshi Maruoka、Makoto Shibata、Makoto Koyama、Asako Nagahira、Yoshiyuki Kamiide、Satomi Kanki、Yoshiyuki Igawa、Tsuyoshi Muto
DOI:10.1016/j.bmc.2015.05.047
日期:2015.8
A series of 2-alkylamino nicotinamide analogs was prepared as orally active ghrelin receptor (ghrelinR) inverse agonists. Starting from compound 1, oral bioavailability was improved by modifying metabolically unstable sites and reducing molecular weight. Brain-permeable compound 33 and compound 24 with low brain permeability were tested in rat models of obesity; 30 mg/kg of compound 33 suppressed weight
制备一系列2-烷基氨基烟酰胺类似物作为口服活性生长素释放肽受体(ghrelinR)反向激动剂。从化合物1开始,通过修饰代谢不稳定的位点并降低分子量,改善了口服生物利用度。在肥胖症的大鼠模型中测试了具有低脑通透性的脑通透性化合物33和化合物24;30 mg / kg的化合物33抑制了体重增加。PK / PD分析显示,ghrelinR反向激动剂的抗肥胖作用取决于他们的大脑浓度。