3-Thienyl- and 3-furylaminobutyric acids. Synthesis and binding GABAB receptor studies
摘要:
Baclofen (beta-(p-chlorophenyl)-GABA) is a selective agonist for the bicuculline-insensitive GABA(B) receptor. The search for new compounds that bind to the GABA(B) receptor is very important to clarify structural requirements. We report herein the synthesis and the binding studies of variously substituted 3-thienyl- and 3-furylaminobutyric acids. 4-Amino-3-(5-methyl-2-thienyl)butyric acid (5d) and 4-amino-3-(5-chloro-2-thienyl)butyric acid (5h) are potent and specific ligands for GABA(B) receptor. The IC50 values for the displacement of (R)-(-)-[H-3]baclofen are 1.34 and 0.61-mu-M for 5d and 5h, respectively, as compared to 0.33-mu-M for baclofen.
[EN] CYCLOHEXYL SULPHONE DERIVATIVES AS GAMMA-SECRETASE INHIBITORS<br/>[FR] UTILISATION DE DERIVES DE CYCLOHEXYLE SULFONE COMME INHIBITEURS DE LA GAMMA-SECRETASE
申请人:MERCK SHARP & DOHME
公开号:WO2004031137A1
公开(公告)日:2004-04-15
Compounds of formula (I) inhibit the processing of APP by gamma-secretase, and hence are useful in treatment of Alzheimer's disease.
式(I)的化合物抑制γ-分泌酶对APP的加工,因此在治疗阿尔茨海默病方面是有用的。
Pyridine esters of cyclopropane-carboxylic acid
申请人:Zoecon Corporation
公开号:US04093622A1
公开(公告)日:1978-06-06
Heterocyclic organic esters and thioesters characterized by the presence of one or two cyclopropane moieties, synthesis thereof, and compositions thereof for the control of mites and ticks.
含有至少一个环丙烷基团的杂环有机酯和硫酯,其合成方法以及用于控制蜱和螨的组合物。
A new procedure for Horner-Wadsworth-Emmons olefination of carbonyl compounds
作者:Francesco Bonadies、Antonella Cardilli、Alessandra Lattanzi、Liliana R. Orelli、Arrigo Scettri
DOI:10.1016/s0040-4039(00)76914-0
日期:1994.5
aldehydes undergo an efficient E-stereoselective Horner-Wadsworth-Emmonsolefination by generation of phosphonate carbanion with lithium hydroxide. The reaction proceeds satisfactorily with linear, cyclic, polifunctional ketones in the presence of activated zeolites and and by the slow addition of the base.
Palladium-catalyzed oxidative coupling of aromatic compounds with olefins using t-butyl perbenzoate as a hydrogen accepter
作者:Jiro Tsuji、Hideo Nagashima
DOI:10.1016/s0040-4020(01)96888-7
日期:1984.1
Benzene and furans undergo oxidative coupling with olefins with an aid of t-butyl perbenzoate and a catalytic amount of Pd salts. The perbenzoate acts as a hydrogen accepter. In the absence of olefins, Pd catalyzed benzoxylation of aromatic compounds takes place.
Tetrazole amide derivatives of heterocyclic alkenyl acids and their use as antiallergic substances
申请人:VALEAS S.p.A.
INDUSTRIA CHIMICA E FARMACEUTICA
公开号:EP0384450A1
公开(公告)日:1990-08-29
Tetrazole amide derivatives of heterocyclic alkenyl acids, of general formula (I):
in which
Y = NH, O or S when m = 1;
Y = N when m = 2;
m = 1 or 2;
l = 0 or 4;
R = H, C₁₋₄ alkyl, Cl, Br, CF₃, CH₂OCOCH₃, or OCH₂-Ph;
R₁ = H, alkaline metal or alkaline earth metal;
the double bond of the alkenyl chain being of trans or cis configuration and the possible benzene ring being unsubstituted or substituted.
Said derivatives possess high antiallergic activity.