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
Enantiospecific enzyme-catalysed resolution of novel N,N-disubstituted α-amino acid phenolic ester derivatives using pig liver esterase
作者:D. Jonathan Bennett、Kirsteen I. Buchanan、Andrew Cooke、Ola Epemolu、Niall M. Hamilton、Edward J. Hutchinson、Ann Mitchell
DOI:10.1039/b008000o
日期:——
R-Amino acid esters 1, 2 and 3 are novel compounds possessing hypnotic activity. On attempting an asymmetric synthesis of these molecules, racemisation was observed when reacting bis(2-methoxyethyl)amine with α-bromo intermediate 4. In vitro plasma stability studies showed that the R enantiomers had much greater resistance to esterase-mediated degradation than the corresponding S enantiomers. This observation led to the use of commercially available pig liver esterase to prepare 1, 2 and 3 on a multigram scale. The crystal structures of 1 and 2 are reported and confirm R configuration.
R-氨基酸酯 1、2 和 3 是具有催眠活性的新型化合物。在尝试不对称合成这些分子时,当双(2-甲氧基乙基)胺与δ-溴中间体 4 反应时,观察到了外消旋化现象。体外血浆稳定性研究表明,与相应的 S 对映体相比,R 对映体对酯酶介导的降解具有更强的抵抗力。根据这一观察结果,我们使用市售的猪肝酯酶制备了多克规模的 1、2 和 3。报告了 1 和 2 的晶体结构,并确认了 R 构型。