Certain 1,3-disubstituted isoquinoline derivatives
申请人:Eisai Co., Ltd.
公开号:US20040204421A1
公开(公告)日:2004-10-14
Condensed pyridine compounds represented by formula (I):
1
wherein: R
1
and R
3
are, independently, hydrogen, halogen, lower alkyl, or lower alkoxy; R
2
represents an amino substituent; ring A is a benzene ring, pyridine ring, thiophene ring, or furan ring; and B represents a substituent containing a ring structure. Also, pharmaceutically acceptable salt and hydrates thereof. These compounds are clinically useful medicaments having serotonin antagonism, and in particular, for treating, ameliorating, or preventing spastic paralysis. They are also useful as central muscle relaxants for ameliorating myotonia.
Nickel‐Catalyzed C−I‐Selective C(<i>sp</i><sup>2</sup>)−C(<i>sp</i><sup>3</sup>) Cross‐Electrophile Coupling of Bromo(iodo)arenes with Alkyl Bromides
作者:Xiaoyuan Ying、Yuxi Li、Luyang Li、Chao Li
DOI:10.1002/anie.202304177
日期:2023.6.26
bromo(iodo)arenes with 3°, 2°, and 1°alkyl bromides is reported. This mild XEC displays a broad scope with demonstrated functional group tolerance and finds use in the streamlined preparation of synthetically challenging bioactive compounds. Given the prevalence of its buildingblocks and the substrate generality, this discovery will likely inspire numerous applications.
Clinically highly useful drugs having an antagonism to serotonin, in particular, central muscle relaxing drugs for treating, ameliorating or preventing spastic paralysis or ameliorating myotonia and comprising fused pyridine derivatives represented by general formula (I), pharmacologically acceptable salts thereof or hydrates of either (I) or (1), wherein the ring A represents a benzene, pyridine, thiophene or furan ring; and B represents (2).