作者:B. Baltzer、F. Lund、N. Rastrup-Andersen
DOI:10.1002/jps.2600681005
日期:1979.10
The hydrolysis of mecillinam in aqueous solution (37 degrees) was studied at pH 2-10. The degradation products observed by TLC and NMR were identified and quantified. Several of these compounds were synthesized. Mecillinam and the key degradation product, (6R)-6-formamidopenicillanic acid, underwent reversible 6-epimerization in basic solution. Some of the thiazolidine derivatives formed epimerized
在pH 2-10下研究了美西林在水溶液(37度)中的水解。鉴定并定量了通过TLC和NMR观察到的降解产物。合成了其中几种化合物。Mecillinam及其关键降解产物(6R)-6-甲酰胺基抗坏血酸在碱性溶液中经历了可逆的6-表异构化。一些噻唑烷衍生物在2位上形成差向异构体。与青霉素相反,美西林的降解模式随着pH的升高而变得更加复杂。给出了某些过程的速率常数。