Catalyst-Free Microwave-Assisted Amination of 2-Chloro-5-nitrobenzoic Acid
摘要:
The synthesis of N-substituted 5-nitroanthranilic acid derivatives 3a-w was achieved by a new, mild, microwave-assisted, regioselective amination reaction of 5-nitro-2-chlorobenzoic acid (1a) with a diverse range of aliphatic and aromatic amines 2a-w without added solvent or catalyst. Up to > 99% isolated yield was obtained within 5-30 min at 80-120 degrees C. The reaction, which is suitable for upscaling, yielded new compounds that are of considerable interest as useful building blocks and as potential drugs.
The present invention relates to novel P2Y
12
receptor antagonists useful for treating, alleviating and/or preventing diseases and disorders related to P2Y
12
receptor function as well as pharmaceutical compositions comprising such compounds and methods for preparing such compounds. The present invention is further directed to the use of these compounds, alone or in combination with other therapeutic agents, for the alleviation, prevention and/or treatment of diseases and disorders, especially the use as antithrombotic agents for inhibiting platelet aggregation.
[EN] NOVEL P2Y12 RECEPTOR ANTAGONISTS<br/>[FR] NOUVEAUX ANTAGONISTES DU RÉCEPTEUR P2Y12
申请人:UNIV BONN
公开号:WO2008107211A2
公开(公告)日:2008-09-12
[EN] The present invention relates to novel P2Y12 receptor antagonists useful for treating, alleviating and/or preventing diseases and disorders related to P2Y12 receptor function as well as pharmaceutical compositions comprising such compounds and methods for preparing such compounds. The present invention is further directed to the use of these compounds, alone or in combination with other therapeutic agents, for the alleviation, prevention and/or treatment of diseases and disorders, especially the use as antithrombotic agents for inhibiting platelet aggregation. [FR] La présente invention concerne de nouveaux antagonistes du récepteur P2Y12 utiles pour traiter, soulager et/ou prévenir des maladies et des états pathologiques liés à la fonction du récepteur P2Y12 ainsi que des compositions pharmaceutiques comprenant ces composés et des procédés de préparation de ces composés. La présente invention concerne en outre l'utilisation de ces composés, seuls ou en combinaison avec d'autres agents thérapeutiques, pour soulager, prévenir et/ou traiter des maladies et états pathologiques, en particulier l'utilisation d'agents anti-thrombotiques pour inhiber l'agrégation plaquettaire.
Catalyst-Free Microwave-Assisted Amination of 2-Chloro-5-nitrobenzoic Acid
作者:Younis Baqi、Christa E. Müller
DOI:10.1021/jo070731i
日期:2007.7.1
The synthesis of N-substituted 5-nitroanthranilic acid derivatives 3a-w was achieved by a new, mild, microwave-assisted, regioselective amination reaction of 5-nitro-2-chlorobenzoic acid (1a) with a diverse range of aliphatic and aromatic amines 2a-w without added solvent or catalyst. Up to > 99% isolated yield was obtained within 5-30 min at 80-120 degrees C. The reaction, which is suitable for upscaling, yielded new compounds that are of considerable interest as useful building blocks and as potential drugs.