The invention relates to novel compounds having the general formula (I), and which compounds are useful to treat a disorder or disease characterized by bronchoconstriction, e.g. COPD and asthma.
Chemoselective Cyclization of Aminonicotinic Acid Derivatives to 1,8-Naphthyridin-2-ones via a Potential Intramolecular Azadiene-Ketene Electrocyclization Reaction
作者:Alexandros L. Zografos、Christos A. Mitsos、Olga Igglessi-Markopoulou
DOI:10.1021/jo0057553
日期:2001.6.1
NAPHTHYRIDINE DERIVATIVES HAVING BRONCHODILATING ACTIVITY
申请人:Respiratorius AB
公开号:EP2401275B1
公开(公告)日:2013-07-24
US8415333B2
申请人:——
公开号:US8415333B2
公开(公告)日:2013-04-09
Dilactams. Synthesis of nonsymmetrical dibenzodiazocinediones 1
作者:Alfred Hassner、Bin Sun、Gary Gellermann、Simcha Meir
DOI:10.1016/j.tetlet.2003.12.079
日期:2004.2
We report the first examples of nonsymmetrical dibenzodiazoeinediones, mono-, di-, tri- and tetra-substituted in the aromatic rings including a benzo pyridino diazocine, by a new short method without the requirement of protection. The procedure involves conversion of an anthranilic acid to its sulfinamide lactone followed by direct heating with a different N-alkylanthranilic acid. (C) 2003 Elsevier Ltd. All rights reserved.