2-(2-吡啶基)氮丙啶-2-羧酸酯和硫酯中的三元环可以在铜(II)催化下选择性裂解N-C2键或在HCl作用下选择性裂解C-C键,分别提供吡唑并[1,5- a ]吡啶或咪唑并[1,5- a ]吡啶系列的异构氮丙啶扩环产物。形成吡唑并吡啶的温和催化反应条件使得可以通过一锅、三阶段程序直接从4-溴异恶唑获得它们,而无需分离中间体2-溴氮丙啶和2-(2-吡啶基)氮丙啶。
IMIDAZOPYRIDINE ANALOGS AS CB2 RECEPTOR MODULATORS, USEFUL IN THE TREATMENT OF PAIN, RESPIRATORY AND NON-RESPIRATORY DISEASES
申请人:Bilodeau Mark T.
公开号:US20090325936A1
公开(公告)日:2009-12-31
The present invention relates to compounds represented by Formula (I) and Formula (II): (I) (II) or pharmaceutically acceptable salts thereof. The present invention also provides pharmaceutical compositions comprising the instant compounds. This invention further provides methods to treat and prevent pain, respiratory and non-respiratory diseases.
[EN] IMIDAZOPYRIDINE ANALOGS AS CB2 RECEPTOR MODULATORS, USEFUL IN THE TREATMENT OF PAIN, RESPIRATORY AND NON-RESPIRATORY DISEASES<br/>[FR] ANALOGUES DE L'IMIDAZOPYRIDINE EN TANT QUE MODULATEURS DU RÉCEPTEUR DE CB2, UTILISABLES POUR LE TRAITEMENT DE LA DOULEUR ET DES MALADIES RESPIRATOIRES ET NON RESPIRATOIRES
申请人:MERCK & CO INC
公开号:WO2008085302A1
公开(公告)日:2008-07-17
[EN] The present invention relates to compounds represented by Formula (I) and Formula (II): (I) (II) or pharmaceutically acceptable salts thereof. The present invention also provides pharmaceutical compositions comprising the instant compounds. This invention further provides methods to treat and prevent pain, respiratory and non-respiratory diseases. [FR] La présente invention concerne des composés représentés par la formule (I) et la formule (II) : (I) (II) ou leurs sels pharmaceutiquement acceptables. L'invention concerne également des compositions pharmaceutiques comprenant les présents composés. L'invention concerne en outre des procédés et des méthodes de traitement et de prévention de la douleur et des maladies respiratoires et non respiratoires.
WO2008/85302
申请人:——
公开号:——
公开(公告)日:——
Divergent Synthesis of Pyrazolo[1,5-<i>a</i>]pyridines and Imidazo[1,5-<i>a</i>]pyridines via Reagent-Controlled Cleavage of the C–N or C–C Azirine Bond in 2-Pyridylazirines
作者:Anastasiya V. Agafonova、Artem A. Golubev、Ilia A. Smetanin、Alexander F. Khlebnikov、Dar’ya V. Spiridonova、Mikhail S. Novikov
DOI:10.1021/acs.orglett.3c02696
日期:2023.10.6
The three-memberedring in 2-(2-pyridyl)azirine-2-carboxylic esters and thioesters can undergo selective cleavage of either the N–C2 bond under copper(II) catalysis or the C–C bond under the action of HCl to provide isomeric azirine ring expansion products of pyrazolo[1,5-a]pyridine or imidazo[1,5-a]pyridine series, respectively. Mild catalytic reaction conditions for the formation of pyrazolopyridines
2-(2-吡啶基)氮丙啶-2-羧酸酯和硫酯中的三元环可以在铜(II)催化下选择性裂解N-C2键或在HCl作用下选择性裂解C-C键,分别提供吡唑并[1,5- a ]吡啶或咪唑并[1,5- a ]吡啶系列的异构氮丙啶扩环产物。形成吡唑并吡啶的温和催化反应条件使得可以通过一锅、三阶段程序直接从4-溴异恶唑获得它们,而无需分离中间体2-溴氮丙啶和2-(2-吡啶基)氮丙啶。