Anticholinergics, processes for preparing them, and pharmaceutical compositions containing them
申请人:——
公开号:US20020119991A1
公开(公告)日:2002-08-29
A compound of formula 1
1
wherein:
A is a group selected from
2
X
−
is an anion with a single negative charge;
R
1
and R
2
are each independently a C
1
-C
4
-alkyl optionally substituted with hydroxy or halogen; and
R
3
, R
4
, R
5
, R
6
, R
7
, and R
8
are each independently hydrogen, C
1
-C
4
-alkyl, C
1
-C
4
-alkyloxy, hydroxy, CF
3
, CN, NO
2
, or halogen,
with the proviso that at least one of the groups R
3
, R
4
, R
5
, R
6
, R
7
, and R
8
is not hydrogen, processes for preparing these compounds, pharmaceutical compositions containing these compounds, and their use as pharmaceutical compositions.
This disclosure relates to amides, aryl sulphonamides, aryl ureas, and α,β-diketones derivatives useful as carboxylesterase esterase inhibitors. The disclosure is also directed to the use of these compounds as selective human intestinal carboxylesterase inhibitors and insect carboxylesterase inhibitors. The disclosure is also directed to pharmaceutical compositions and pesticide formulations containing these compounds, and to methods for treating or ameliorating the toxic effects following administration of drugs such as cancer therapy drugs, treating or ameliorating the effects of a drug overdose, and to the use of the compounds for increasing the effectiveness of insecticides and pesticides.
Structure–activity relationship (SAR) investigations of substituted imidazole analogs as TRPV1 antagonists
作者:Vijay K. Gore、Vu V. Ma、Rami Tamir、Narender R. Gavva、James J.S. Treanor、Mark H. Norman
DOI:10.1016/j.bmcl.2007.08.044
日期:2007.11
A novel series of 4,5-biarylimidazoles as TRPV1 antagonists were designed based on the previously reported 4,6-disubstituted benzimidazole series. The analogs were evaluated for their ability to block capsaicin- or acid-induced calcium influx in TRPV1-expressing CHO cells. These studies led to the identification of a highly potent and orally bioavailable TRPV1 antagonist, imidazole 33. (c) 2007 Elsevier Ltd. All rights reserved.
Identification and Characterization of Novel Benzil (Diphenylethane-1,2-dione) Analogues as Inhibitors of Mammalian Carboxylesterases
作者:Randy M. Wadkins、Janice L. Hyatt、Xin Wei、Kyoung Jin P. Yoon、Monika Wierdl、Carol C. Edwards、Christopher L. Morton、John C. Obenauer、Komath Damodaran、Paul Beroza、Mary K. Danks、Philip M. Potter
DOI:10.1021/jm049011j
日期:2005.4.1
Carboxylesterases (CE) are ubiquitous enzymes responsible for the metabolism of xenobiotics. Because the structural and amino acid homology among esterases of different classes, the identification of selective inhibitors of these proteins has proved problematic. Using Telik's target-related affinity profiling (TRAP) technology, we have identified a class of compounds based on benzil (1,2-diphenylethane-1,2-dione) that are potent CE inhibitors, with K-i values in the low nanomolar range. Benzil and 30 analogues demonstrated selective inhibition of CEs, with no inhibitory activity toward human acetylcholinesterase or butyrylcholinesterase. Analysis of structurally related compounds indicated that the ethane- 1,2-dione moiety was essential for enzyme inhibition and that potency was dependent on the presence of, and substitution within, the benzene ring. 3D-QSAR analyses of these benzil analogues for three different mammalian CEs demonstrated excellent correlations of observed versus predicted K-i (r(2) > 0.91), with cross-validation coefficients (q(2)) of 0.9. Overall, these results suggest that selective inhibitors of CEs with potential for use in clinical applications can be designed.
NEUE ANTICHOLINERGIKA, VERFAHREN ZU DEREN HERSTELLUNG UND DEREN VERWENDUNG ALS ARZNEIMITTEL