Triazolinone Biphenylsulfonamides as Angiotensin II Receptor Antagonists with High Affinity for Both the AT1 and AT2 Subtypes
摘要:
Angiotensin II (AII), the endogenous peptide Ligand of the AII receptor, has equivalent high affinity for both the AT(1) and AT(2) receptor subtypes while most of the reported nonpeptide AII antagonists are AT(1)-selective. In an effort to identify dual AT(1)/AT(2) nonpeptide AII antagonists, we have pursued modifications of previously prepared trisubstituted 1,2,4-triazolinone biphenylsulfonamides which exhibited subnanomolar in vitro AT(1) (rabbit aorta) AII antagonism and AT(2) (rat midbrain) IC50 values of <40 nM. Present results show that a suitable amide (or reversed amide) side chain appropriately positioned on the N-2-aryl group of these compounds gave >15-fold enhancement in AT(2) binding affinity without sacrificing nanomolar AT(1) potency (IC50). This added amide, combined with an appropriate choice of the N-substituent on the sulfonamide and the ortho substituent on the N-2-aryl group, led to an analogue (46, L-163,- 007) which exhibited subnanomolar AT(1) binding affinity and an AT(2)/AT(1) IC50 ratio of 3. This compound showed excellent iv activity at 1 mg/kg and oral efficacy at 3 mg/kg with >6 h duration in a conscious rat model. Available data suggest that the newly introduced amide side chain, mandatory for low nanomolar binding affinity at the AT(2) receptor, is well-tolerated by the AT(1) receptor and has minimal effect on the in vivo properties of these molecules.
为了发现针对ryanodine受体(RyRs)的有效杀虫剂,设计并合成了一系列含有N-取代苯基吡唑的新型邻氨基苯甲酰胺二酰胺类似物(12a – 12u)。这些化合物通过1 H NMR,13 C NMR和HRMS进行表征,并且化合物12u的结构通过X射线衍射确认。它们的杀虫活性表明这些化合物显示出中等至优异的活性。特别是,12i在0.25和0.05 mg L –1时对东方粘虫(Mythimna separata)表现出100%和37%的杀幼虫活性,相当于对氯吡虫啉(100%,0.25 mg L )的杀幼虫活性。–1 ; 和33%,0.05 mg L –1)。12i对小菜蛾(Plutella xylostella)的活性在0.05 mg L –1时为95%,而对照在0.05 mg L –1时为100%。钙成像技术实验结果表明,12i对神经元细胞内钙离子浓度([Ca 2+ ] i)的影响与浓度有
Substituted triazolinones, triazolinethiones, and triazolinimines as
申请人:Merck & Co., Inc.
公开号:US05411980A1
公开(公告)日:1995-05-02
There are disclosed new substituted triazolinone, triazolinethione, and triazolinimine compounds which are useful as angiotensin II antagonists. These compounds have the general formula: ##STR1## wherein G is R.sup.1 or ##STR2##
[EN] FUSED HETEROCYCLIC COMPOUNDS AS PROTEIN KINASE INHIBITORS<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES FUSIONNÉS EN TANT QU'INHIBITEURS DE PROTÉINE KINASE
申请人:GUO YUNHANG
公开号:WO2014173289A1
公开(公告)日:2014-10-30
The invention is fused heterocyclic compounds of formula (I), and salts thereof, compositions thereof, and methods of use therefor. In particular, disclosed herein are certain fused heterocyclic compounds that can be useful for inhibiting protein kinase, including Bruton's tyrosine kinase (Btk), and for treating disorders mediated thereby.
Potent and orally active angiotensin II receptor antagonists with equal affinity for human AT1 and AT2 subtypes
作者:Linda L. Chang、Wallace T. Ashton、Kelly L. Flanagan、Tsing-Bau Chen、Stacey S. O'Malley、Gloria J. Zingaro、Salah D. Kivlighn、Peter K. S. Siegl、Victor J. Lotti
DOI:10.1021/jm00019a004
日期:1995.9
induced by the interactions between angiotensinII (AII) and both AT1 and AT2 receptors, we have pursued the discovery of orally active non-peptide AII antagonists that exhibit potent and equal affinity for human AT1 and AT2 receptor subtypes. A series of previously prepared nanomolar (IC50) trisubstituted 1,2,4-triazolinone biphenyl-sulfonamide dual-acting AII antagonists has been modified at five different
[EN] SUBSTITUTED INDOLE DERIVATIVES FOR PHARMACEUTICAL COMPOSITION FOR TREATING RESPIRATORY DISEASES<br/>[FR] DERIVES D'INDOLES SUBSTITUES POUR COMPOSITIONS PHARMACEUTIQUES PERMETTANT DE TRAITER LES TROUBLES RESPIRATOIRES
申请人:ASTRAZENECA AB
公开号:WO2005019171A1
公开(公告)日:2005-03-03
The present invention relates to substituted indoles of formula (I) useful as pharmaceutical compounds for treating respiratory disorders.