Disclosed are compounds of Formula I
and pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
3
, R
4
, and R
5
are defined herein. These compounds are useful for treating diseases and conditions caused or exacerbated by unregulated p38 MAP Kinase and/or TNF activity. Pharmaceutical compositions containing the compounds, methods of preparing the compounds and methods of treatment using the compounds are also disclosed.
Benzannulation and
<i>N</i>
‐Annulation of β‐Ketoenamines for Synthesizing Aniline and Pyridine Derivatives Using DMSO as a Methine Source
作者:Pallaba Ganjan Dalai、Niranjan Panda
DOI:10.1002/adsc.202200886
日期:2022.11.8
N-annulation of β-ketoenamines by the in-situ generated methyl(methylene)sulfonium ion from the reaction of dimethylsulfoxide (DMSO) and 1,2-dibromoethane (DBE) was achieved. The β-ketoenamines underwent N-annulation to pyridine derivatives, while the N-alkylated enamines were benzannulated to afford substituted anilines. The utility of the intermediate methyl(methylene)sulfonium ion was further extended for