Renk, Dana R.; Skraban, Marcel; Bier, Dirk; Schulze, Annette; Wabbals, Erika; Wedekind, Franziska; Neumaier, Felix; Neumaier, Bernd; Holschbach, Marcus published the article 《Design, synthesis and biological evaluation of Tozadenant analogues as adenosine A2A receptor ligands》. Keywords: morpholinyl benzothiazolyl methylpiperidine carboxamide preparation adenosine receptor fluorine isotopologue; A(2A) adenosine Receptor; Autoradiography; Binding studies; Fluorinated analogues; Fluorine-18 isotopologues; Ligand synthesis.They researched the compound: 4-Methoxypiperidine( cas:4045-24-3 ).HPLC of Formula: 4045-24-3. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:4045-24-3) here.
With the aim to obtain potent adenosine A2A receptor (A2AR) ligands, a series of eighteen derivatives of 4-hydroxy-N-(4-methoxy-7-morpholin-4-yl-1,3-benzo[d]thiazol-2-yl)-4-methylpiperidine-1-carboxamide were designed and synthesized. The target compounds were obtained by a chem. building block principle that involved reaction of the appropriate aminobenzothiazole Ph carbamates with either com. available or readily synthesized functionalized piperidines. Ki values for human A2AR ranged from 2.4 to 38 nM, with more than 120-fold selectivity over A1 receptors for all evaluated compounds except 4-Fluoro-4-(hydroxymethyl)-N-(4-methoxy-7-morpholinobenzo[d]thiazol-2-yl)piperidine-1-carboxamide which had a Ki of 361 nM and 18-fold selectivity. The most potent fluorine-containing derivatives exhibited Ki values of 4.9 nM, 3.6 nM and 2.8 nM for the human A2AR. Interestingly, the corresponding values for rat A2AR were found to be four to five times higher. Their binding to A2AR was further confirmed by radiolabeling with 18F and in vitro autoradiog. in rat brain slices, which showed almost exclusive striatal binding and complete displacement by the A2AR antagonist ZM 241385. Authors conclude that these compounds represent potential candidates for the visualization of the A2A receptor and open pathways to novel therapeutic treatments of neurodegenerative disorders or cancer.
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Reference:
Pyrroline – Wikipedia,
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