A Dipolar Cycloaddition Reaction To Access 6-Methyl-4,5,6,7-tetrahydro-1<i>H</i>-[1,2,3]triazolo[4,5-<i>c</i>]pyridines Enables the Discovery Synthesis and Preclinical Profiling of a P2X7 Antagonist Clinical Candidate
作者:Christa C. Chrovian、Akinola Soyode-Johnson、Alexander A. Peterson、Christine F. Gelin、Xiaohu Deng、Curt A. Dvorak、Nicholas I. Carruthers、Brian Lord、Ian Fraser、Leah Aluisio、Kevin J. Coe、Brian Scott、Tatiana Koudriakova、Freddy Schoetens、Kia Sepassi、David J. Gallacher、Anindya Bhattacharya、Michael A. Letavic
DOI:10.1021/acs.jmedchem.7b01279
日期:2018.1.11
7-tetrahydro-5H-[1,2,3]triazolo[4,5-c]pyridine P2X7 antagonists that contain a synthetically challenging chiral center. The structure–activity relationships of the new compounds are described. Two of these compounds, (S)-(2-fluoro-3-(trifluoromethyl)phenyl)(1-(5-fluoropyrimidin-2-yl)-6-methyl-1,4,6,7-tetrahydro-5H-[1,2,3]triazolo[4,5-c]pyridin-5-yl)methanone (compound 29) and (S)-(3-fluoro-2-(trifluoromet
开发了一个单锅偶极环加成反应/ Cope消除序列,以访问新颖的1,4,6,7-四氢-5 H- [1,2,3]三唑[4,5- c ]吡啶P2X7拮抗剂,该拮抗剂包含合成的具有挑战性的手性中心。描述了新化合物的结构-活性关系。这些化合物中的两种,(S)-(2-氟-3-(三氟甲基)苯基)(1-(5-氟嘧啶-2-基)-6-甲基-1,4,6,7-四氢-5 H -[1,2,3]三唑并[4,5 - c ]吡啶-5-基)甲酮(化合物29)和(S)-(3-氟-2-(三氟甲基)吡啶-4-基)(1 -(5-氟嘧啶-2-基)-6-甲基-1,4,6,7-四氢-5 H- [1,2,3]三唑[4,5- c在低剂量下,发现大鼠吡啶[5-吡啶基]甲酮(化合物35)具有很强的P2X7受体占有率,ED 50值分别为0.06和0.07 mg / kg。与29相比,化合物35的溶解度显着,并且对临床前物种显示出良好的耐受性。选择化