Isomerization-Free Sulfonylation and Its Application in the Synthesis of PHA-565272A
摘要:
FeCl3 catalyzed an isomerization-free Friedel-Crafts sulfonylation between 1-naphthalenesulfonyl chloride and halobenzenes. The coupled halide was then displaced using 35% hydrazine in DMSO to provide the Fischer indole precursor. Pure 5-chloro-2-pentanone was the key for a successful Grandberg modification of Fischer indole synthesis that effectively constructed both the indole core and side chain of the target molecule. The development of these methods enabled a rapid preparation of kilogram quantities of PHA-565272A.
[EN] 5-ARYLSULFONYL INDOLES HAVING 5-HT6 RECEPTOR AFFINITY<br/>[FR] 5-ARYLSULFONYL INDOLES PRESENTANT UNE AFFINITE AVEC LES RECEPTEURS 5-HT6
申请人:UPJOHN CO
公开号:WO2003011284A1
公开(公告)日:2003-02-13
The invention provides derivatives of 5-arylsulfonyl indole and 5-arylsulfonyl indoline compounds which may be in the form of pharmaceutical acceptable salts or compositions that are useful in treating central nervous system diseases such as anxiety and depression. The invention also includes intermediates and processes to make the compounds, isotopically-labeled forms of the compounds and the use of the isotopically labeled forms of the compounds to perform nuclear magnetic resonance imaging and positron emission tomography.
5-ARYLSULFONYL INDOLES HAVING 5-HT6 RECEPTOR AFFINITY
申请人:PHARMACIA & UPJOHN COMPANY
公开号:EP1411925A1
公开(公告)日:2004-04-28
US6565829B2
申请人:——
公开号:US6565829B2
公开(公告)日:2003-05-20
5-arylsulfonyl indoles useful for treating disease
申请人:——
公开号:US20030060498A1
公开(公告)日:2003-03-27
The invention provides derivatives of 5-arylsulfonyl indole and 5-arylsulfonyl indoline compounds which may be in the form of pharmaceutical acceptable salts or compositions that are useful in treating central nervous system diseases such as anxiety and depression. The invention also includes intermediates and processes to make the compounds, isotopically-labeled forms of the compounds and the use of the isotopically labeled forms of the compounds to perform nuclear magnetic resonance imaging and positron emission tomography.
Isomerization-Free Sulfonylation and Its Application in the Synthesis of PHA-565272A
作者:Thomas J. Fleck、Jiong Jack Chen、Cuong V. Lu、Kari J. Hanson
DOI:10.1021/op050208a
日期:2006.3.1
FeCl3 catalyzed an isomerization-free Friedel-Crafts sulfonylation between 1-naphthalenesulfonyl chloride and halobenzenes. The coupled halide was then displaced using 35% hydrazine in DMSO to provide the Fischer indole precursor. Pure 5-chloro-2-pentanone was the key for a successful Grandberg modification of Fischer indole synthesis that effectively constructed both the indole core and side chain of the target molecule. The development of these methods enabled a rapid preparation of kilogram quantities of PHA-565272A.