Reversible inhibitors of the gastric (H+/K+)-ATPase. 1. 1-Aryl-4-methylpyrrolo[3,2-c]quinolines as conformationally restrained analogs of 4-(arylamino)quinolines
摘要:
The 4-(arylamino)quinoline 4, previously described as an antiulcer compound, is shown to be an inhibitor of the gastric (H+/K+)-ATPase. It is postulated that 1-arylpyrrolo[3,2-c]quinolines 6 act as conformationally restrained analogues of 4. A series of derivatives of 6 has been prepared and shown to be potent inhibitors of the target enzyme in vitro. Substitution in the ortho position of the aryl ring is important for activity. Unsaturation in the 5-membered ring makes little difference, but introduction of heteroatoms into the same ring markedly reduces activity. In more detailed kinetic experiments, 15c and 4 both show reversible, K(+)-competitive binding to the enzyme, with submicromolar Ki values. The compounds appear to act at the lumenal face of the enzyme and to require protonation for activity. Several compounds in the series are shown to be potent inhibitors of pentagastrin-stimulated acid secretion in the rat.
The present invention relates to compounds and pharmaceutical compositions which are proteomimetic and to methods for inhibiting the interaction of an alpha-helical protein with another protein or binding site. Methods for treating diseases or conditions which are modulated through interactions between alpha helical proteins and their binding sites are other aspects of the invention.
Pyrrolocinnolines for use as inhibitors of gastric acid secretion
申请人:Smith Kline & French Laboratories Limited
公开号:US04988695A1
公开(公告)日:1991-01-29
Pyrrolo- and dihydropyrrolocinnolines, and their use as inhibitors of gastric acid secretion. A compound of the invention is 1-(2-methylphenyl)-2,3-dihydropyrrolo-[3,2-c]-cinnoline.
elemental analysis, 1HNMR, and cyclic voltammetry. X-ray structural study reveals that intermolecular and intramolecular hydrogen bonding plays an important role in their supramolecular assembly; it is found that (i) bridged oxo ligands of hexamolybdate cluster are more inclined to formhydrogenbonds as acceptors than terminal oxo ligands in this system; (ii) small solvent molecules with hydrogen bonding
一系列hexamolybdate的远程羟基官能化有机亚胺衍生物的,(BU 4 N)2 [沫6 ø 18(CRES)](1)(CRES = 4-氨基-米甲酚),(BU 4 N)2 [沫6 O 17(Cres)2 ]·H 2 O(2),(Bu 4 N)2 [Mo 6 O 18(Phen)]· i -PrOH (Phen =对氨基苯酚)(3),(Bu 4 N)2 [Mo 6 O18(苯)]·EtOH(4),(Bu 4 N)2 [Mo 6 O 17(苯)2 ](5),(Bu 4 N)2 [Mo 6 O 18(Naph)](Naph = 5合成了(氨基)-氨基-1-萘基)(6)和(Bu 4 N)2 [Mo 6 O 18(Chex)]·1.5H 2 O(Chex =反式-4-氨基环己醇)(7)晶体X射线衍射,FT-IR光谱,UV-vis光谱,元素分析,11 H NMR和循环伏安法。X射线结构研究表明,
2, 4-pyrimidinediamine compounds and their uses
申请人:Singh Rajinder
公开号:US20050038243A1
公开(公告)日:2005-02-17
The present invention provides 2,4-pyrimidinediamine compounds that inhibit the IgE and/or IgG receptor signaling cascades that lead to the release of chemical mediators, intermediates and methods of synthesizing the compounds and methods of using the compounds in a variety of contexts, including in the treatment and prevention of diseases characterized by, caused by or associated with the release of chemical mediators via degranulation and other processes effected by activation of the IgE and/or IgG receptor signaling cascades.
The present invention provides 2,4-pyrimidinediamine compounds that inhibit the IgE and/or IgG receptor signaling cascades that lead to the release of chemical mediators, intermediates and methods of synthesizing the compounds and methods of using the compounds in a variety of contexts, including in the treatment and prevention of diseases characterized by, caused by or associated with the release of chemical mediators via degranulation and other processes effected by activation of the IgE and/or IgG receptor signaling cascades.