Ring constrained analogues of β-alanine-containing GPIIb/IIIa receptor antagonists
摘要:
A series of ring constrained analogues of the GPIIb/IIIa receptor antagonist XR299 (1) was investigated as potential inhibitors of glycoprotein IIb/IIIa, a platelet receptor that plays a key role in platelet aggregation and platelet adhesion. Ring size was found to have a large effect on in vitro potency. Selected compounds showed good in vitro activity, a preference for binding to activated platelets, and modest duration of action when dosed iv as a racemate in a canine model. (C) 2000 DuPont Pharmaceuticals Company. Published by Elsevier Science Ltd. All rights reserved.
作者:Valeriya S. Velezheva、Albert G. Kornienko、Sergey V. Topilin、Ascar D. Turashev、Alexander S. Peregudov、Patrick J. Brennan
DOI:10.1002/jhet.5570430410
日期:2006.7
A novel method for Lewis acid catalyzed Nenitzescu indole syntheses of 5-hydroxyindoles bearing different substituents in positions 1 )Alk, Bn, Ar), 2 )Me, Et, Ph), and 3 )COOEt, COMe, CONHPh) as well as tricyclic derivatives are reported. The method is simple, rapid, efficient, and allows preparation of hydroxyindoles from 1,4-benzoquinone and enamines in good to excellent yields with the use of low-polar
Bicyclic triazoles from a diazo transfer reaction between cyclic enaminones and 5,7-dinitro-3-diazo-1,3-dihydro-2H-indol-2-one
作者:Rodinei Augusti、Concetta Kascheres
DOI:10.1016/s0040-4020(01)81328-4
日期:1994.1
The synthetic usefulness of a new method of 1,2,3-triazole synthesis has been demonstrated. By employing cyclicenamino esters 3 and enaminoketones 4 in reactions with 5,7-dinitro-3-diazo-1,3-dihydro-2H-indol-2-one (1), bicyclic triazoles 5 and 6 have been prepared in good to excellent yields.