Synthesis and structure-activity relationships of ionizable 1,3,4-oxadiazol-2(3H)-ones as peripherally selective FAAH inhibitors with improved aqueous solubility

被引:3
|
作者
Beliaev, Alexandre [1 ]
Ferreira, Humberto S. [1 ]
Learmonth, David A. [2 ]
Bonifacio, Maria Joao [3 ]
Torrao, Leonel [3 ]
Pires, Nuno M. [3 ]
Soares-da-Silva, Patricio [3 ,4 ]
Kiss, Laszlo E. [1 ]
机构
[1] BIAL Portela & Ca SA, Dept Res & Dev, Chem Lab, Coronado, S Romao E S Man, Portugal
[2] Stemmatters Biotecnol & Med Regenerat SA, P-4805017 Guimaraes, Portugal
[3] BIAL Portela & Ca SA, Dept Res & Dev, Pharmacol Lab, Coronado, S Romao E S Man, Portugal
[4] Univ Porto, Fac Med, Dept Pharmacol & Therapeut, P-4200319 Oporto, Portugal
关键词
aqueous solubility; ESOC-19; FAAH inhibitors; fatty acid amide hydrolase; 1,3,4-oxadiazol-2(3H)-ones; peripheral selectivity; ACID AMIDE HYDROLASE; MONOACYLGLYCEROL LIPASE INHIBITORS; THERAPEUTIC TARGET; ANTAGONISTS; ENZYME; DESIGN;
D O I
10.1515/pac-2016-0104
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Novel 5-(2,4-difluorophenoxy)-3-aryl-1,3,4-oxadiazol-2(3H)-ones were prepared and in vivo SAR are discussed. Ionisable substituents on the N-phenyl ring provided compounds with significantly improved aqueous solubility. In addition, these analogues retained equivalent or improved potency against FAAH enzyme compared to the parent phenols 2-3. FAAH inhibition by the 2-(piperazin-1-yl) ethyl and 3-(piperazin-1-yl) propyl derivatives 24 and 30 was confined to the periphery in mice (30 mg/kg), whereas hepatic FAAH activity was inhibited by over 90 %.
引用
收藏
页码:341 / 347
页数:7
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