A Versatile Annulation Route to Primary-Amino-Substituted Naphthyridine Esters
摘要:
A straightforward four-step synthesis of primary-amino-substituted naphthyridine esters from commercially available cyanopyridines was described. The route makes use of a condensation reaction between pyridinyl acetates with N,N-dimethylformamide dimethylacetal (DMF-DMA) to form ortho-cyano vinylogous carbamates. These intermediates can undergo facile cyclization with ammonium acetate in acetic acid to generate the corresponding naphthyridine esters in good synthetic yields. The synthesis of primary-amino-substituted 7-azaquinoxaline was also described.
The invention provides a compound of Formula (I)
pharmaceutically acceptable salts, pro-drugs, biologically active metabolites, stereoisomers and isomers thereof wherein the variable are defined herein. The compounds of the invention are useful for treating immunological and oncological conditions.
A General, One-Step Synthesis of Substituted Indazoles using a Flow Reactor
作者:Rob C. Wheeler、Emma Baxter、Ian B. Campbell、Simon J. F. Macdonald
DOI:10.1021/op100288t
日期:2011.5.20
Flow chemistry is a rapidly emerging technology within the pharmaceutical industry, both within medicinal and development chemistry groups. The advantages of flow chemistry, increased safety, improved reproducibility, enhanced scalability, are readily apparent, and we aimed to exploit this technology in order to provide small amounts of pharmaceutically interesting fragments via a safe and scalable
Phenyl, Pyridine, Quinoline, Isoquinoline, Naphthyridine and Pyrazine Derivatives
申请人:Binggeli Alfred
公开号:US20080045544A1
公开(公告)日:2008-02-21
This invention is concerned with compounds of the formula
and pharmaceutically acceptable salts thereof. The invention further relates to pharmaceutical compositions containing such compounds, to a process for their preparation and to their use for the treatment and/or prevention of diseases which are associated with the modulation of SST receptors subtype 5.
[EN] DIHYDROOROTATE DEHYDROGENASE INHIBITORS<br/>[FR] INHIBITEURS DE DIHYDROOROTATE DÉSHYDROGÉNASE
申请人:JANSSEN BIOTECH INC
公开号:WO2020161663A1
公开(公告)日:2020-08-13
Disclosed are compounds, compositions and methods for treating diseases, disorders, or medical conditions that are affected by the modulation of DHODH. Embodiments of such compounds are represented by Formula (I) as follows: 5 wherein R1, R2, R3, R4, R5a, R5b, X and Y, are defined herein.