Design, synthesis, and pharmacological evaluation of JDTic analogs to examine the significance of replacement of the 3-hydroxyphenyl group with pyridine or thiophene bioisosteres
作者:Chad M. Kormos、Moses G. Gichinga、Scott P. Runyon、James B. Thomas、S. Wayne Mascarella、Ann M. Decker、Hernán A. Navarro、F. Ivy Carroll
DOI:10.1016/j.bmc.2016.06.029
日期:2016.8
hydroxyl on the 3-hydroxyphenyl group and did not have methyl groups at the 3- and 4-position of the piperidine ring were still potent and selective KOR antagonists. In this study we report JDTic analogs 2, 3a–b, 4a–b, and 5, where the 3-hydroxyphenyl ring has been replaced by a 2-, 3-, or 4-pyridyl or 3-thienyl group and do not have the 3-methyl or 3,4-dimethyl groups, remain potent and selective
有效和选择性的KOR拮抗剂JDTic衍生自N-取代的反式-3,4-二甲基-4-(3-羟苯基)哌啶类纯阿片拮抗剂。在以前的研究中,我们报道了在3-羟基苯基上没有羟基,在哌啶环的3和4位上没有甲基的化合物仍然是有效的选择性KOR拮抗剂。在这项研究中,我们报告JDTic类似物2,图3a - b,图4a - b,和5,其中,3-羟基苯基环已被替换为2-,3-,或4-吡啶基或3-噻吩基和不具有3-甲基或3,4-二甲基仍然是有效的和选择性的KOR拮抗剂。其中,(3R)-7-羟基-N-(1 S)-2-甲基-[4-甲基-4-吡啶-3-基-羧酰胺(3b)在[ 35 S]GTPγS中具有最佳的整体结合力和选择性功能分析, 相对于MOR和DOR,KOR的K e = 0.18 nM,KOR的选择性分别为273和16700倍。计算得出的3b的理化性质表明,它将穿过血脑屏障。