Synthesis and antihistamine evaluations of novel loratadine analogues
摘要:
A series of loratadine analogues containing hydroxyl group and chiral center were synthesized. The effect of the synthesized compounds on the histamine-induced contractions of guinea-pig ileum muscles was studied. In addition, the in vivo asthma-relieving effect of the analogues in the histamine induced asthmatic reaction in guinea-pigs was determined. Most of the compounds exhibited definite H-1 antihistamine activity. The S-enantiomers, compounds 2, 4 and 8, are more potent than the R-enantiomers, compounds 1, 3 and 7. Compound 6 was the most active one among the eight synthesized compounds. (C) 2011 Elsevier Ltd. All rights reserved.
[EN] BENZENESULFONAMIDE COMPOUNDS AND THEIR USE AS THERAPEUTIC AGENTS<br/>[FR] COMPOSÉS BENZÈNESULFONAMIDES ET LEUR UTILISATION EN TANT QU'AGENTS THÉRAPEUTIQUES
申请人:XENON PHARMACEUTICALS INC
公开号:WO2017201468A1
公开(公告)日:2017-11-23
This invention is directed to benzenesulfonamide compounds, as stereoisomers, enantiomers, tautomers thereof or mixtures thereof; or pharmaceutically acceptable salts, solvates or prodrugs thereof, for the treatment of diseases or conditions associated with voltage-gated sodium channels, such as epilepsy.
[EN] COMPOSITIONS AND METHODS FOR TREATING MALARIA<br/>[FR] COMPOSITIONS ET MÉTHODES DE TRAITEMENT DU PALUDISME
申请人:UNIV RUTGERS
公开号:WO2021167894A1
公开(公告)日:2021-08-26
Disclosed are methods of treating malaria with tetrahydrobenzonaphtyridine carboxanilide (TBN) derivatives and related pyrrolinones and hydrolysis products thereof. These compounds are active against Plasmodium falciparum strains that are resistant to multiple drugs currently on the market. The present invention further relates to novel compounds and pharmaceutical compositions comprising such compounds.
Electrochemical Access to 8-(1-Phenyl-ethyl)-1,4-dioxa-8-aza-spiro[4.5]decane-7-carbonitrile. Application to the Asymmetric Syntheses of (+)-Myrtine and Alkaloid (+)-241D
作者:Van Ha Vu、Fadila Louafi、Nicolas Girard、Ronan Marion、Thierry Roisnel、Vincent Dorcet、Jean-Pierre Hurvois
DOI:10.1021/jo500104c
日期:2014.4.18
protecting group in piperidone derivatives was carried out by stirring them in a suspension of SnCl4·(Et2O)2 complex in diethyl ether. When appropriate, the er’s were determined by proton and carbon NMR spectroscopy utilizing (+)-tert-butylphenylphosphinothioic acid and (+)-DBTA as chiralsolvatingagents.
(S)-(−)-α-Methylbenzylamine as chiral auxiliary in the synthesis of (+)-lortalamine
作者:Jolanta Pawłowska、Krzysztof K. Krawczyk、Krystyna Wojtasiewicz、Jan K. Maurin、Zbigniew Czarnocki
DOI:10.1007/s00706-008-0017-2
日期:2009.1
(+)-Lortalamine was synthesised using (S)-(-)-alpha-methylbenzylamine as a chiral auxiliary. The stereochemistry of an intermediate compound was established on the basis of X-ray crystallography, allowing unambiguous assignment of the absolute configuration.
(+)-Lortalamine 通过使用 (S)-(-)-α-甲基苯基乙胺作为手性辅助剂进行合成。中间体化合物的立体化学基于 X 射线晶体学确定,从而实现了绝对构型的无歧义归属。
Design of Novel Enantiopure Dispirooxindolopyrrolidine-Piperidones as Promising Candidates toward COVID-19: Asymmetric Synthesis, Crystal Structure and In Silico Studies
作者:Amani Toumi、Sarra Boudriga、Yasmine M. Mandour、Ahmed A. Mekki、Michael Knorr、Carsten Strohmann、Jan-Lukas Kirchhoff、Mansour Sobeh
DOI:10.3390/molecules27123945
日期:——
Despite the effectiveness of COVID-19 vaccines, there is still an urgent need for discovering new anti-viral drugs to address the awful spread and transmission of the rapidly modifiable virus. In this study, the ability of a small library of enantiomerically pure spirooxindolopyrrolidine-grafted piperidones to inhibit the main protease of SARS-CoV-2 (Mpro) is evaluated. These spiroheterocycles were synthesized
尽管 COVID-19 疫苗有效,但仍迫切需要发现新的抗病毒药物,以解决这种可迅速改变的病毒的可怕传播和传播问题。在这项研究中,评估了一个小型对映体纯螺氧吲哚吡咯烷接枝哌啶酮文库抑制 SARS-CoV-2 (M pro ) 主要蛋白酶的能力。这些螺杂环是通过各种稳定的偶氮甲碱叶立德与衍生自N - [ (S) -(-)-甲基苄基]-4-哌啶酮的手性亲偶极体的 1,3-偶极环加成合成的。通过单晶 X 射线衍射分析证实了连续碳的绝对构型。这些化合物与 SARS-CoV-2 M pro的结合使用分子对接和分子动力学模拟进行了研究。三种化合物4a、4b和4e表现出与 SARS-CoV-2 M pro底物结合袋的关键亚位点相互作用的稳定结合模式。合成的化合物代表了开发用于 COVID-19 治疗的新型 SARS-CoV-2 主要蛋白酶蛋白抑制剂的潜在线索。