Application of a Rhodium-Catalyzed Addition/Cyclization Sequence toward the Synthesis of Polycyclic Heteroaromatics
摘要:
A cascade rhodium-catalyzed addition/cyclization reaction of bifunctional heteroromatic boronate esters to strained bicyclic alkenes has been developed. This method provides an efficient route to generate a variety of polycyclic heteroaromatic molecules containing benzothiophene, benzofuran, and indole moieties.
Substituted 7-aza[2.2.1]bicycloheptanes for the treatment of disease
申请人:——
公开号:US20030105089A1
公开(公告)日:2003-06-05
The invention provides compounds of Formula I:
1
which may be in the form of pharmaceutical acceptable salts or compositions, are useful in treating diseases or conditions in which &agr;7 nicotinic acetylcholine receptors (nAChRs) are known to be involved.
Quinuclidines-substituted-multi-cyclic-heteroaryls for the treatment of disease
申请人:——
公开号:US20030045540A1
公开(公告)日:2003-03-06
The invention provides compounds of Formula I:
1
where in W is
2
These compounds may be in the form of pharmaceutical salts or compositions, racemic mixtures, or pure enantiomers thereof. The compounds of Formula I are useful to treat diseases or conditions in which &agr;7 is known to be involved.
[EN] QUINUCLIDINES-SUBSTITUTED-MULTI-CYCLIC-HETEROARYLS FOR THE TREATMENT OF DISEASE<br/>[FR] MULTI-HETEROARYLES CYCLIQUES SUBSTITUES PAR QUINUCLIDINES POUR LE TRAITEMENT DE MALADIES
申请人:UPJOHN CO
公开号:WO2002100857A1
公开(公告)日:2002-12-19
The invention provides compounds of Formula (I), where in W is. These compounds may be in the form of pharmaceutical salts or compositions, racemic mixtures, or pure enantiomers thereof. The compounds of Formula (I) are useful in pharmaceuticals to treat diseases or conditions in which α7 is known to be involved.
Brønsted Acid-Catalyzed Straightforward Synthesis of Benzo[<i>b</i>]carbazoles from 2,3-Unsubstituted Indoles
作者:Anisley Suárez、Patricia García-García、Manuel A. Fernández-Rodríguez、Roberto Sanz
DOI:10.1002/adsc.201300868
日期:2014.2.10
AbstractDescribed is a general and efficient synthesis of valuable benzo[b]carbazoles by Brønsted acid‐catalyzed reactions between simple C‐2,C‐3‐unsubstituted indoles and ortho‐[α‐(hydroxy)benzyl]benzaldehyde acetals. Highly selective migration processes are involved as key steps in the overall cascade sequence that involves the one‐pot formation of two new bonds and a cycle in a regioselective fashion.magnified image
CUGNON DE SEVRICOURT M.; ROBBA M., BULL. SOC. CHIM. FRANCE, 1977, NO 1-2, PART. 2, 142-144