Discovery and structure–activity relationships of a series of pyroglutamic acid amide antagonists of the P2X7 receptor
摘要:
A computational lead-hopping exercise identified compound 4 as a structurally distinct P2X(7) receptor antagonist. Structure-activity relationships (SAR) of a series of pyroglutamic acid amide analogues of 4 were investigated and compound 31 was identified as a potent P2X(7) antagonist with excellent in vivo activity in animal models of pain, and a profile suitable for progression to clinical studies. (C) 2010 Elsevier Ltd. All rights reserved.
环保法规推动新的更安全,毒性较低的生物基溶剂的查找替换争议的高沸点溶剂,如ñ甲基-2-吡咯烷酮和ñ,ñ在化工行业二甲基甲酰胺。最近,N-烷基-2-吡咯烷酮和5-甲基-N-烷基-2-吡咯烷酮被提议作为许多应用的有吸引力的替代溶剂。在这里,我们报告了一种基于生物的两步化学催化系统,该系统可以从谷氨酸和C 3 -C 5羰基化合物开始合成范围广泛的N-烷基-2-吡咯烷酮。第一步N通过温和且有效的Pd催化的还原性N-烷基化以高产率(> 85%)合成了谷氨酸的α-单烷基化衍生物。随后,在惰性气氛下在250℃下热诱导内酰胺化成相应的N-烷基焦谷氨酸,然后Pd催化脱羧,得到N-烷基-2-吡咯烷酮。通过用碱中和N-烷基焦谷氨酸底物,部分抵消了水解降解,导致产率高达82%。最后,两个反应步骤在相同的Pd / Al 2 O 3催化剂下,在不同的气体气氛和温度条件下,通过一锅法成功地结合在一起。
Bio-based N-alkyl-2-pyrrolidones by Pd-catalyzed reductive N-alkylation and decarboxylation of glutamic acid
作者:Free De Schouwer、Sander Adriaansen、Laurens Claes、Dirk E. De Vos
DOI:10.1039/c7gc01829k
日期:——
controversial high-boiling solvents such as N-methyl-2-pyrrolidone and N,N-dimethylformamide in the chemical industry. Recently, N-alkyl-2-pyrrolidones and 5-methyl-N-alkyl-2-pyrrolidones were proposed as attractive alternative solvents for many applications. Here, we report a bio-based two-step chemocatalytic system for the synthesis of a broad range of N-alkyl-2-pyrrolidones starting from glutamic acid
环保法规推动新的更安全,毒性较低的生物基溶剂的查找替换争议的高沸点溶剂,如ñ甲基-2-吡咯烷酮和ñ,ñ在化工行业二甲基甲酰胺。最近,N-烷基-2-吡咯烷酮和5-甲基-N-烷基-2-吡咯烷酮被提议作为许多应用的有吸引力的替代溶剂。在这里,我们报告了一种基于生物的两步化学催化系统,该系统可以从谷氨酸和C 3 -C 5羰基化合物开始合成范围广泛的N-烷基-2-吡咯烷酮。第一步N通过温和且有效的Pd催化的还原性N-烷基化以高产率(> 85%)合成了谷氨酸的α-单烷基化衍生物。随后,在惰性气氛下在250℃下热诱导内酰胺化成相应的N-烷基焦谷氨酸,然后Pd催化脱羧,得到N-烷基-2-吡咯烷酮。通过用碱中和N-烷基焦谷氨酸底物,部分抵消了水解降解,导致产率高达82%。最后,两个反应步骤在相同的Pd / Al 2 O 3催化剂下,在不同的气体气氛和温度条件下,通过一锅法成功地结合在一起。
Discovery and structure–activity relationships of a series of pyroglutamic acid amide antagonists of the P2X7 receptor
作者:Muna H. Abdi、Paul J. Beswick、Andy Billinton、Laura J. Chambers、Andrew Charlton、Sue D. Collins、Katharine L. Collis、David K. Dean、Elena Fonfria、Robert J. Gleave、Clarisse L. Lejeune、David G. Livermore、Stephen J. Medhurst、Anton D. Michel、Andrew P. Moses、Lee Page、Sadhana Patel、Shilina A. Roman、Stefan Senger、Brian Slingsby、Jon G.A. Steadman、Alexander J. Stevens、Daryl S. Walter
DOI:10.1016/j.bmcl.2010.07.033
日期:2010.9
A computational lead-hopping exercise identified compound 4 as a structurally distinct P2X(7) receptor antagonist. Structure-activity relationships (SAR) of a series of pyroglutamic acid amide analogues of 4 were investigated and compound 31 was identified as a potent P2X(7) antagonist with excellent in vivo activity in animal models of pain, and a profile suitable for progression to clinical studies. (C) 2010 Elsevier Ltd. All rights reserved.