[EN] QUINOLIZIDINE AND INDOLIZIDINE DERIVATIVES<br/>[FR] DÉRIVÉS QUINOLIZIDINE ET INDOLIZIDINE
申请人:HOFFMANN LA ROCHE
公开号:WO2011161008A1
公开(公告)日:2011-12-29
The present invention relates to a compound of general formula I-A or I-B wherein X is a bond or a CH2- group; R1, R2 and R3 are independently from each other hydrogen, lower alkoxy, lower alkyl substituted by halogen or S-lower alkyl; or to a pharmaceutically acceptable acid addition salt, to a racemic mixture, or to its corresponding enantiomer and/or optical isomer thereof. It has been found that the compounds of general formulas I-A and I-B are good inhibitors of the glycine transporter 1 (GlyT-1), and that they have a good selectivity to glycine transporter 2 (GlyT-2) inhibitors, suitable in the treatment of neurological and neuropsychiatric disorders.
[EN] 4-AMINO-QUINOLINE OUINOLIZIDINYL-AND QUINOLIZIDINYLALKYL-DERIVATIVES WITH ANTIMALARIAL ACTIVITY<br/>[FR] DERIVES DE QUINOLIZIDINYLE DE 4-AMINO-QUINOLINE ET D'ALKYLE DE QUINOLIZIDINYLE A ACTIVITE ANTIPALUDEENNE
申请人:UNIV DEGLI STUDI MILANO
公开号:WO2005037833A1
公开(公告)日:2005-04-28
The present invention relates to 4-amino-quinoline quinolizidinyl- and quinolizidinylalkyl-derivatives with antimalarial activity, in particular compounds of the general formula (I), in which R and n are as defined in the description,pharmaceutically acceptable salts thereof, complexes thereof with gold, rhodium or ruthenium and pharmaceutical compositions containing them. The compounds of the invention are active also on chloroquine-resistant strains of Plasmodium falciparum.
(+)-Laburnamine (1), a rare alkaloid extracted fromLaburnumanagyroides seeds (∼4 mg from 1 kg), was shown to bind with high affinity (Ki, 293 nM) to the α4β2 nicotinic receptor subtype, which is, respectively, 126 and 136 times higher than to the α3β4 (Ki 37 μM) and α7 subtypes (Ki 40 μM). When its ability to release [3H]-dopamine from striatal slices was tested in a functional assay, compound 1
(+) - Laburnamine(1),从提取的罕见生物碱毒豆种子(约为4毫克来自1千克)中,示出以高亲和力结合(ķ我,293纳米)到α4β2烟碱样受体亚型,其为,分别比α3β4(K i 37μM )和α7亚型(K i 40μM)高126倍和136倍。在功能分析中测试了其从纹状体切片中释放[ 3 H]-多巴胺的能力时,化合物1表现为部分激动剂,EC 50为5.8μM,E max为尼古丁的43%。在同一试验中与尼古丁一起孵育时,1 阻止达到最大的效果。
Clemo et al., Journal of the Chemical Society, 1931, p. 3190,3197
作者:Clemo et al.
DOI:——
日期:——
4-Aminoquinoline quinolizidinyl- and quinolizidinylalkyl-derivatives with antimalarial activity
A set of quinolizidinyl and quinolizidinylalkyl derivatives of 4-amino-7-chloroquinoline and of 9-amino-6-chloro 2-methoxyacridine were prepared and tested in vitro against CQ-sensitive (D-10) and CQ-resistant (W-2) strains of Plasmodium falciparum. All compounds but one exerted significant antimalarial activity. Some of the quinolizidine derivatives were from 5 to 10 times more active than chloroquine on the CQ-resistant strain. No toxicity against mammalian cells was observed. (c) 2005 Elsevier Ltd. All rights reserved.