1,2,3,4,7,8-Hexahydro-6H-[1,4]diazepino[6,7,1-ij]quinoline derivatives as antipsychotic and antiobesity agents
申请人:Wyeth
公开号:US20040019040A1
公开(公告)日:2004-01-29
Compounds of Formula I or a pharmaceutically acceptable salt thereof are provided:
1
where R
1
through R
7
are defined herein. The compounds of Formula I are 5HT2c agonists or partial agonists, and are useful for treating a variety of disorders.
I can do it! Accelerated by simple iodide ions, rhodium‐catalysed transferhydrogenation can be readily performed on quinolines, isoquinolines and quinoxalines, affording the tetrahydro products in high yields with low catalyst loading (see scheme).
synthesis of chiral tetrahydroquinoline derivatives with excellent enantioselectivities and high yields has been developed through one‐pot cascade biomimetic reduction. The detailed reaction pathway includes the acid‐catalyzed and ruthenium‐catalyzedformation of aromatic quinoline intermediates and biomimetic asymmetric reduction.
Asymmetric Counterion Pair Catalysis: An Enantioselective Brønsted Acid-Catalyzed Protonation
作者:Magnus Rueping、Thomas Theissmann、Sadiya Raja、Jan W. Bats
DOI:10.1002/adsc.200800020
日期:2008.5.5
A new asymmetric Brønstedacid-catalyzedcascadereactioninvolving a 1,4-addition, enantioselective protonation and 1,2-addition has been developed. This organocatalytic cascade not only provides for the first time 3- and 2,3-substituted tetrahydroquinolines and octahydroacridines in good yields with high dia- and enantioselectivities under mild reaction conditions but additionally represents the