Arylpiperazines displaying preferential potency against chloroquine-resistant strains of the malaria parasite Plasmodium falciparum
摘要:
Arylpiperazines in which the terminal secondary amino group is unsubstituted were found to display a mefloquine-type antimalarial behavior in being significantly more potent against the chloroquine-resistant (W2 and FCR3) strains of Plasmodium falciparum than against the chloroquine-sensitive (D10 and NF54) strains. Substitution of the aforementioned amino group led to a dramatic drop in activity across all strains as well as abolition of the preferential potency against resistant strains that was observed for the unsubstituted counterparts. The data suggest that unsubstituted arylpiperazines are not well-recognized by the chloroquine resistance mechanism and may imply that they act mechanistically differently from chloroquine. On the other hand, 4-aminoquinoline-based heteroarylpiperazines in which the terminal secondary amino group is also unsubstituted, were found to be equally active against the chloroquine -resistant and chloroquine-sensitive strains, suggesting that chloroquine cross-resistance is not observed with these two 4-aminoquinolines. In contrast, two 4-aminoquinoline-based heteroarylpiperazines are positively recognized by the chloroquine resistance mechanism. These studies provide structural features that determine the antimalarial activity of arylpiperazines for further development, particularly against chloroquine-resistant strains. (c) 2005 Elsevier Inc. All rights reserved.
[EN] PIPERAZINE, PIPERIDINE AND TETRAHYDROPYRIDINE DERIVATIVES AND THEIR PHARMACEUTICAL USE<br/>[FR] DÉRIVÉS DE PIPÉRAZINE, PIPÉRIDINE ET TÉTRAHYDROPYRIDINE ET LEUR UTILISATION PHARMACEUTIQUE
申请人:ATIR HOLDING S A
公开号:WO2010137018A1
公开(公告)日:2010-12-02
Novel piperazine, piperidine and tetrahydropyridine derivatives of the formula I comprising a dibenzofurane moiety are privided herein, as well as pharmaceutical compositions comprising same and therapeutic uses thereof to treat disorders such as central nervous disorders.
[EN] SMALL MOLECULE AGONISTS OF NEUROTENSIN RECEPTOR 1<br/>[FR] AGONISTES À PETITES MOLÉCULES DE RÉCEPTEUR DE NEUROTENSINE 1
申请人:SANFORD BURNHAM MED RES INST
公开号:WO2014100501A1
公开(公告)日:2014-06-26
Provided herein are small molecule neurotensin receptor agonists, compositions comprising the compounds, and methods of using the compounds and compositions comprising the compounds.
A compound of formula (I) for use in the treatment or prevention of mental diseases
A is N, CH, C having a double bond or CR5; each of B and Z is independently N, CH or CR1, with the proviso that A is N when B and/or Z is N; R1, R2, R3, R4 and R5 and n are as defined in the specification.
This invention discloses the antianxiety properties of compounds of the formula: ##STR1## wherein n is 3 or 4, R is C.sub.1 -C.sub.4 alkyl or phenyl, and Ar is ##STR2## where Z is selected from H, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkenyloxy or hydroxy.
Microwave-Assisted Synthesis of Trazodone and Its Derivatives as New 5-HT1A Ligands: Binding and Docking Studies
作者:Jolanta Jaśkowska、Przemysław Zaręba、Paweł Śliwa、Edyta Pindelska、Grzegorz Satała、Zbigniew Majka
DOI:10.3390/molecules24081609
日期:——
well-known antidepressantdrug widely used throughout the world, works as a 5-hydroxytryptamine (5-HT2) and α1-adrenergic receptor antagonist and a serotonin reuptake inhibitor. Our research aimed to develop a new method for the synthesis of trazodone and its derivatives. In the known methods of the synthesis of trazodone and its derivatives, organic and toxic solvents are used, and the synthesis time varies