Synthesis, Biological Evaluation, and Docking Studies of Tetrahydrofuran- Cyclopentanone- and Cyclopentanol-Based Ligands Acting at Adrenergic α1- and Serotonine 5-HT1A Receptors
摘要:
A series of aralkylphenoxyethylamine and aralkylmethoxyphenylpiperazine compounds was synthesized and their in vitro pharmacological profile at both 5-HT1A receptors and alpha(1)-adrenoceptor subtypes was measured by binding assay and functional studies. The results showed that the replacement of the 1,3-dioxolane ring by a tetrahydrofuran, cyclopentanone, or cyclopentanol moiety leads to an overall reduction of in vitro affinity at the alpha(1)-adrenoceptor while both potency and efficacy were increased at the 5-HT1A receptor. A significant improvement of 5-HT1A/alpha 1 selectivity was observed in some of the cyclopentanol derivatives synthesized (4a cis, 4c cis and trans). Compounds 2a and 4c cis emerged as novel and interesting 5-HT1A receptor antagonist (pK(i) = 8.70) and a 5-HT1A receptor partial agonist (pK(i) = 9.25, pD(2) = 9.03, E-max = 47%, 5-HT1A/alpha 1a = 69), respectively. Docking studies were performed at support of the biological data and to elucidate the molecular basis for 5-HT1A agonism/antagonism activity.
A chymase inhibitor containing as its effective ingredient a quinazoline derivative, or a pharmaceutically acceptable salt thereof, having the formula (1): ##STR1## and a pharmaceutical preparation for the prevention of cardiac and circulatory system diseases derived from abnormal exacerbation of Ang II production containing the same as its effective ingredient.
POLYCYCLIC PYRAZOLINONE DERIVATIVE AND HERBICIDE COMPRISING SAME AS EFFECTIVE COMPONENT THEREOF
申请人:SAGAMI CHEMICAL RESEARCH INSTITUTE
公开号:US20160024110A1
公开(公告)日:2016-01-28
Provided are a polycyclic pyrazolinone derivative indicated by general formula (1) (in the formula, R
1
, X
1
, X
2
, X
3
, and Y indicate the definitions provided in the Specification) and a herbicide comprising same as effective component thereof.
Efficient synthesis of aliphatic sulfones by Mg mediated coupling reactions of sulfonyl chlorides and aliphatic halides
作者:Ying Fu、Qin-Shan Xu、Quan-Zhou Li、Zhengyin Du、Ke-Hu Wang、Danfeng Huang、Yulai Hu
DOI:10.1039/c7ob00251c
日期:——
Sulfonylchlorides were reduced to anhydrous sulfinate salts with magnesium under sonication. These sulfinates were alkylated to sulfones with alkyl chlorides in the presence of catalytic sodium iodide under sonication. A variety of aliphatic sulfones was efficiently prepared by this one-pot two-step procedure.
Route exploration and synthesis of the reported pyridone-based PDI inhibitor STK076545
作者:Eric Greve、Sergey V. Lindeman、Christina Scartelli、Lin Lin、Robert Flaumenhaft、Chris Dockendorff
DOI:10.1039/d0ob01205j
日期:——
confirm its activity and support further biological studies, a resynthesis was pursued of the reported β-keto-amide with an N-alkylated pyridone at the α-position. Numerous conventional approaches were complicated by undesired fragmentations or rearrangements. However, a successful 5-step synthetic route was achieved using an aldol reaction with an α-pyridone allyl ester as a key step. An X-ray crystal
[EN] PROCESS AND EQUIPMENT FOR THE PREPARATION OF HALOCARBOXYLIC ACID ALKYL ESTERS<br/>[FR] PROCÉDÉ ET MATÉRIEL POUR LA PRÉPARATION D'ESTERS ALKYLIQUES D'ACIDES CARBOXYLIQUES HALOGÉNÉS
申请人:LONZA AG
公开号:WO2013121017A1
公开(公告)日:2013-08-22
Provided is a reactive distillation and equipment to obtain a compound of formula (II) Hal-CH2-A-C(O)-OR, wherein Hal is halogen selected from F, CI, Br or I, A denotes a bond or a divalent spacer selected from alkylene and arylene groups, and R is C1-4 alkyl group.