Abstract:
:A single pot dipolar cycloaddition reaction/Cope elimination sequence was developed to access novel 1,4,6,7-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-(trifluoromethyl)pyridin-4-yl)(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 35), were found to have robust P2X7 receptor occupancy at low doses in rat with ED50 values of 0.06 and 0.07 mg/kg, respectively. Compound 35 had notable solubility compared to 29 and showed good tolerability in preclinical species. Compound 35 was chosen as a clinical candidate for advancement into phase I clinical trials to assess safety and tolerability in healthy human subjects prior to the initiation of proof of concept studies for the treatment of mood disorders.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Chrovian CC,Soyode-Johnson A,Peterson AA,Gelin CF,Deng X,Dvorak CA,Carruthers NI,Lord B,Fraser I,Aluisio L,Coe KJ,Scott B,Koudriakova T,Schoetens F,Sepassi K,Gallacher DJ,Bhattacharya A,Letavic MAdoi
10.1021/acs.jmedchem.7b01279subject
Has Abstractpub_date
2018-01-11 00:00:00pages
207-223issue
1eissn
0022-2623issn
1520-4804journal_volume
61pub_type
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