Heterocyclic compounds as P2X7 ion channel blockers
申请人:Shum Patrick
公开号:US20050026916A1
公开(公告)日:2005-02-03
The present invention relates to a novel series of 4,5-diphenyl-2-amino-4,5-dihydro-imidazole derivatives of the formula II:
wherein R, R
1
, R
2
, R
3
, R
4
, R
5
, X and Y are as defined herein. This invention also relates to methods of making these compounds. The compounds of this invention are P2X7 ion channel blockers and are therefore useful as pharmaceutical agents, especially in the treatment and/or prevention of a variety of diseases having an inflammatory component, including inflammatory bowel disease, rheumatoid arthritis and disease conditions associated with the central nervous system, such as stroke, Alzheimer's disease, etc.
Azetidine derivatives, their preparation and pharmaceutical compositions containing them
申请人:——
公开号:US20010027193A1
公开(公告)日:2001-10-04
Compounds of formula:
1
in which R represents a CR
1
R
2
, C═C(R
5
)SO
2
R
6
or C═C(R
7
)SO
2
alk radical, their preparation and the pharmaceutical compositions containing them.
A method of treating or preventing Alzheimer's disease, Parkinson's Disease and/or schizophrenia, this method comprising administering to a patient in need of such treatment a compound of formula:
in which R, R
3
and R
4
are as defined in the specification.
HETEROCYCLIC COMPOUNDS AS P2X7 ION CHANNEL BLOCKERS
申请人:SHUM Patrick
公开号:US20080132550A1
公开(公告)日:2008-06-05
The present invention relates to a novel series of 4,5-diphenyl-2-amino-4,5-dihydro-imidazole derivatives of the formula II:
wherein R, R
1
, R
2
, R
3
, R
4
, R
5
, X and Y are as defined herein. This invention also relates to methods of making these compounds. The compounds of this invention are P2X7 ion channel blockers and are therefore useful as pharmaceutical agents, especially in the treatment and/or prevention of a variety of diseases having an inflammatory component, including inflammatory bowel disease, rheumatoid arthritis and disease conditions associated with the central nervous system, such as stroke, Alzheimer's disease, etc.
Thiocarbonyl fluoride generated in situ from difluorocarbene for cyclization of vicinal X-H substituted amines (X = N, O or S)
作者:Jia-Lu Hu、Mu-Xian Fu、Ji-Chang Xiao、Jin-Hong Lin
DOI:10.1016/j.jfluchem.2023.110212
日期:2023.11
for the cyclization of vicinal X-H substituted amines to provide various five-membered heterocycles. However, arylamines are required to be used and difluoromethylation of the NH bond or a newly generated S-H bond cannot be suppressed. Herein we describe the use of thiocarbonyl fluoride generated in situ as a thiocarbonyl source for the cyclization of vicinal X-H substituted alkyl amines (X = N, O