<i>p</i>-Toluenesulfonic Acid Promoted Annulation of 2-Alkynylanilines with Activated Ketones: Efficient Synthesis of 4-Alkyl-2,3-Disubstituted Quinolines
Reactions between readily available 2-alkynylanilines and activatedketones such as β-keto esters promoted by p-toluenesulfonicacid afford 4-alkyl-2,3-disubstitutedquinolines in good to excellent yields. The generality of substituents at the other end of the triple bond of 2-alkynylanilines makes the method a valuable approach to diversified 4-alkylquin-olines, which are difficult to obtain by classical
3-cyanoquinolines, 3-cyano-1,6-naphthyridines, and 3-cyano-1,7-naphthyridines as protein kinase inhibitors
申请人:American Home Products Corporation
公开号:US20020026052A1
公开(公告)日:2002-02-28
This invention provides compounds of Formula (I), having the structure
1
where T, Z, X, A, R
1
, R
2a
, R
2b
, R
2c
, R
3
, R
4
, and n are defined herein, or a pharmaceutically acceptable salt thereof which are useful as antineoplastic agents and in the treatment of osteoporosis and polycystic kidney disease.
New convenient conditions for the Friedlander synthesis of quinolines are described. Polysubstitutedquinolines were readily prepared using chlorotrimethylsilane as a promoter and water-acceptor agent.
[EN] 3-CYANOQUINOLINES,3-CYANO-1,6-NAPHTHYRIDINES, AND 3-CYANO-1,7-NAPHTHYRIDINES AS PROTEIN KINASE INHIBITORS<br/>[FR] 3-CYANOQUINOLINES,3-CYANO-1,6-NAPHTHYRIDINES ET 3-CYANO-1,7-NAPHTHYRIDINES UTILISEES COMME INHIBITEURS DE PROTEINEKINASE
申请人:AMERICAN HOME PROD
公开号:WO2001072711A1
公开(公告)日:2001-10-04
Compounds of Formula (I), having the structure or a pharmaceutically salt thereof are useful as antineoplastic agents and in the treatment of osteoporosis and polycystic kidney disease.
Domino Nitro Reduction-Friedländer Heterocyclization for the Preparation of Quinolines
作者:Kwabena Fobi、Richard A. Bunce
DOI:10.3390/molecules27134123
日期:——
presence of active methylene compounds (AMCs) to produce substituted quinolines in high yields. The conditions are mild enough to tolerate a wide range of functionality in both reacting partners and promote reactions not only with phenyl and benzyl ketones, but also with β-keto-esters, β-keto-nitriles, β-keto-sulfones and β-diketones. The reaction of 2-nitroaromatic ketones with unsymmetrical AMCs is