Synthesis and Structure−Activity Relationship Studies of 2-(N-Substituted)-aminobenzimidazoles as Potent Negative Gating Modulators of Small Conductance Ca2+-Activated K+ Channels
摘要:
Small conductance Ca2+-activated K+ channels (SK channels) participate in the control of neuronal excitability, in the shaping of action potential firing patterns, and in the regulation of synaptic transmission. SK channel inhibitors have the potential of becoming new drugs for treatment of various psychiatric and neurological diseases such as depression, cognition impairment, and Parkinson's disease. In the present study we describe the structure-activity relationship (SAR) of a class of 2-(N-substituted)-2-aminobenzimidazoles that constitute a novel class of selective SK channel inhibitors that, in contrast to classical SK inhibitors, do not block the pore of the channel. The pore blocker apamin is not displaced by these compounds in binding studies, and they still inhibit SK channels in which the apamin binding site has been abolished by point mutations. These novel SK inhibitors shift the concentration-response curve for Ca2+ toward higher values and represent the first example of negative gating modulation as a mode-of-action for inhibition of SK channels. The first described compound in this class is NS8593 (14), and the most potent analogue identified in this study is the racemic compound 39 (NS11757), which reversibly inhibits SK3-rnediated currents with a K-d value of 9 nM.
ION CHANNEL INHIBITOR COMPOUNDS FOR CANCER TREATMENT
申请人:Centre National de la Recherche Scientifique
公开号:US20210009581A1
公开(公告)日:2021-01-14
The present invention concerns a compound of following general formula (I):
where:
either R is an R
1
group and R′ is an -A
1
-Cy
1
group, or R is an -A
1
-Cy
1
group and R′ is an R
1
group,
R
1
particularly being H or (C
1
-C
6
)alkyl group;
A
1
being an —NH— radical or —NH—CH
2
— radical;
Cy
1
particularly being a phenyl group,
A is a fused (hetero)aromatic ring having 5 to 7 atoms,
for use for treating cancer.
[EN] 2,7,9-SUBSTITUTED PURINONE DERIVATIVES FOR IMMUNOSUPPRESSION<br/>[FR] DÉRIVÉS DE PURINONE SUBSTITUÉS EN POSITION 2, 7 ET 9 POUR L'IMMUNOSUPPRESSION
申请人:PHARMACOPEIA INC
公开号:WO2009048474A1
公开(公告)日:2009-04-16
The present invention provides novel purinone and related derivatives useful for the prevention and treatment of autoimmune diseases, inflammatory disease, mast cell mediated disease and transplant rejection. The compounds are of the general formula (I).
Mapping the substrate scope of monoamine oxidase (MAO-N) as a synthetic tool for the enantioselective synthesis of chiral amines
作者:Susanne Herter、Florian Medina、Simon Wagschal、Cyril Benhaïm、Friedemann Leipold、Nicholas J. Turner
DOI:10.1016/j.bmc.2017.07.023
日期:2018.4
library of 132 racemic chiral amines (α-substituted methylbenzylamines, benzhydrylamines, 1,2,3,4-tetrahydronaphthylamines (THNs), indanylamines, allylic and homoallylic amines, propargyl amines) was screened against the most versatile monoamine oxidase (MAO-N) variants D5, D9 and D11. MAO-N D9 exhibited the highest activity for most substrates and was applied to the deracemisation of a comprehensive set
[EN] BENZIMIDAZOLYL-ACETAMIDE DERIVATIVES USEFUL AS POTASSIUM CHANNEL MODULATORS<br/>[FR] DÉRIVÉS DE BENZIMIDAZOLYL-ACÉTAMIDE UTILES EN TANT QUE MODULATEURS DES CANAUX POTASSIQUES
申请人:ACESION PHARMA APS
公开号:WO2013104577A1
公开(公告)日:2013-07-18
This invention relates to novel benzimidazolyl-acetamide derivatives to formula (l) and their use as modulators of small-conductance calcium-activated potassium channels (SK channels). Moreover the invention is directed to pharmaceutical compositions useful for the treatment or alleviation of diseases or disorders associated with the activity of potassium channels.
Novel 2-amino benzimidazole derivatives and their use as modulators of small-conductance calcium-activated potassium channels
申请人:Sorensen Svane Ulrik
公开号:US20070197618A1
公开(公告)日:2007-08-23
This invention relates to novel 2-amino benzimidazole derivatives useful as modulators of small-conductance calcium-activated potassium channels (SK channels). In other aspects the invention relates to the use of these compounds in a method for therapy and to pharmaceutical compositions comprising the compounds of the invention.