An enantioselective fluorination of 3‐functionalized oxindoles using electron‐rich amino urea catalyst is described. Various 3‐functionalized 3‐fluoro‐2‐oxindoles were obtained in good yields and enantio‐selectivity. The resulting enantioenriched 3‐methylene nitrile 3‐fluoro‐2‐oxindole product was found to inhibit indoleamine 2,3‐dioxygenase considerably.
Asymmetric Catalytic Double Michael Additions for the Synthesis of Spirooxindoles
作者:Tengfei Kang、Peng Zhao、Jian Yang、Lili Lin、Xiaoming Feng、Xiaohua Liu
DOI:10.1002/chem.201800043
日期:2018.3.12
Asymmetric cascade double Michael additions to construct 2′‐substituted 3,3′‐spirooxindoles by using a chiral guanidine organocatalyst has been developed. A series of spirooxindole derivatives containing dihydrofuran or pyrrolidine subunits were obtained with good to excellent diastereo‐ and enantioselectivities. The method showed great tolerance of a number of aromatic and aliphatic alkynones. The
D2 ANTAGONISTS, METHODS OF SYNTHESIS AND METHODS OF USE
申请人:Luehr Gary W.
公开号:US20120010228A1
公开(公告)日:2012-01-12
Provided are D
2
or D
3
antagonist compounds and pharmaceutical compositions of formula I
and pharmaceutically acceptable salts thereof, or isomers thereof, wherein R
1
, R
2
and R
3
are as defined herein. The invention further comprises methods for making the compounds of the invention and methods for the treatment of conditions mediated by the dopamine D
2
or D
3
receptor from the compounds of the invention.
D2 antagonists, methods of synthesis and methods of use
申请人:Luehr Gary W.
公开号:US08691836B2
公开(公告)日:2014-04-08
Provided are D2 or D3 antagonist compounds and pharmaceutical compositions of formula I
and pharmaceutically acceptable salts thereof, or isomers thereof, wherein R1, R2 and R3 are as defined herein. The invention further comprises methods for making the compounds of the invention and methods for the treatment of conditions mediated by the dopamine D2 or D3 receptor from the compounds of the invention.
A Pd[0]-catalyzed Ullmann cross-coupling/reductive cyclization approach to C-3 mono-alkylated oxindoles and related compounds
作者:Martin G. Banwell、Matthew T. Jones、David T.J. Loong、David W. Lupton、David M. Pinkerton、Jayanta K. Ray、Anthony C. Willis
DOI:10.1016/j.tet.2010.09.042
日期:2010.11
The Pd[0]-catalyzed Ullmann cross-coupling of o-nitrohaloarenes 1a-e with the brominated heterocycles 2a-f delivers the expected products 3a-j in good to excellent yields The reductive cyclization of such products as well as N-acyl derivatives 3k I and m has been investigated and provided the C-3 mono-substituted oxindoles 5a-d f g k and m the direct reduction products 41 and J or indole 51 (C) 2010 Elsevier Ltd All rights reserved