New mesoionic systems of azolopyridine series 2. Synthesis, structures, and biological activity of 2-aminothiazolo[3,2-a]pyridinium salts and thiazolo[3,2-a]pyridinium 2-imidates
作者:E. V. Babaev、A. A. Bush、I. A. Orlova、V. B. Rybakov、I. Iwataki
DOI:10.1007/s11172-005-0242-3
日期:2005.1
A new procedure was developed for the synthesis of 2-aminothiazolo[3,2-a]pyridiniumsalts 8 by the reaction of 2-halo-N-phenacylpyridinium salts with KSCN. The anion compositions of salts 8 were studied by ion chromatography. Acylation of salts 8 afforded representatives of the previously unknown bicyclic mesoionic thiazolo[3,2-a]pyridinium 2-imidate system 9. The three-dimensional structures of 2
A self-[3+2] annulation reaction of pyridinium salts has been developed for the synthesis of N-indolizine-substituted pyridine-2(1H)-ones. This protocol was carried out under mild reaction conditions without any precious catalysts in generally moderate to good yields. Additionally, a plausible mechanism for the transformation was proposed.
吡啶鎓盐的自[3+2] 环化反应已被开发用于合成N-中氮茚取代的吡啶-2(1 H )-酮。该方案是在温和的反应条件下进行的,没有任何贵重的催化剂,产率通常适中。此外,还提出了一种合理的转化机制。
Casein kinase 1 delta inhibitor
申请人:ELECTROPHORETICS LIMITED
公开号:US10815230B2
公开(公告)日:2020-10-27
The present invention provides 2-Methyl-amino-3-[(4-fluorophenyl)carbonyl]indolizine-1-carboxamide of formula (I) or a pharmaceutically acceptable salt thereof;
and its therapeutic uses in the treatment of neurodegenerative disorders, in particular tauopathies and most preferably in the treatment of Alzheimer's disease.