Synthesis, enantioresolution, and activity profile of chiral 6-methyl-2,4-disubstituted pyridazin-3(2H)-ones as potent N-formyl peptide receptor agonists
作者:Agostino Cilibrizzi、Igor A. Schepetkin、Gianluca Bartolucci、Letizia Crocetti、Vittorio Dal Piaz、Maria Paola Giovannoni、Alessia Graziano、Liliya N. Kirpotina、Mark T. Quinn、Claudia Vergelli
DOI:10.1016/j.bmc.2012.04.043
日期:2012.6
A series of chiral pyridazin-3(2H)-ones was synthesized, separated as pure enantiomers, and evaluated for N-formyl peptide receptor (FPR) agonist activity. Characterization of the purified enantiomers using combined chiral HPLC and chiroptical studies (circular dichroism, allowed unambiguous assignment of the absoluteconfiguration for each pair of enantiomers). Evaluation of the ability of racemic
The accurate determination of the enantiomeric composition of α-halo carboxylic acids is reported. Such data are of importance in the synthesis of chiral compounds and in mechanistic studies involving the title compounds.
Forty-six new compounds were synthesized on the basis of our knowledge of the 3-haloacylamino benzoylurea (HBU) series. Structure-activityrelationship (SAR) analysis indicates that (i) the configuration of the chiral center in 1 (JIMB01) is not indispensable for the activity, (ii) the phenyl ring is essential, and (iii) a substitution at the 6-position of the phenyl ring with a halogen enhances the
α-Amino Acid Phenolic Ester Derivatives: Novel Water-Soluble General Anesthetic Agents Which Allosterically Modulate GABA<sub>A</sub> Receptors
作者:Alison Anderson、Delia Belelli、D. Jonathan Bennett、Kirsteen I. Buchanan、Anna Casula、Andrew Cooke、Helen Feilden、David K. Gemmell、Niall M. Hamilton、Edward J. Hutchinson、Jeremy J. Lambert、Maurice S. Maidment、Ross McGuire、Petula McPhail、Susan Miller、Annalisa Muntoni、John A. Peters、Francis H. Sansbury、Donald Stevenson、Hardy Sundaram
DOI:10.1021/jm010903i
日期:2001.10.1
In the search for a novel water-soluble general anesthetic agent the activity of an alpha-amino acid phenolic ester lead, identified from patent literature, was markedly improved. In addition to improving in vivo activity in mice, good in vitro activity at GABA(A) receptors was also conferred. Within the series of compounds good enantioselectivity for both in vitro and in vivo activity was found, supporting