代谢
当人类肝脏微粒体与NADPH和乙基碳酰胺一起孵化时,检测到了产物乙烯基碳酰胺、2-羟基乙基碳酰胺和乙基N-羟基碳酰胺。当以乙基碳酰胺为底物进行反应时,产物形成的速率几乎与乙基碳酰胺浓度呈一级反应(Km大于2 mM),且速率比乙烯基碳酰胺情况下要慢得多。观察到形成1,N6-乙炔基腺苷的乙基碳酰胺的大动力学氘同位素效应(大于7),并且形成乙烯基碳酰胺和2-羟基乙基碳酰胺的高同位素效应(6-8)也被注意到了。
When human liver microsomes were incubated with NADPH and ethyl carbamate, the products vinyl carbamate, 2-hydroxyethyl carbamate, and ethyl N-hydroxycarbamate were detected. When the reaction was done with ethyl carbamate as the substrate, the rate of product formation was nearly first order in ethyl carbamate concentration (Km greater than 2 mM) and the rate was considerably slower than in the case of vinyl carbamate. ... A large kinetic deuterium isotope effect (greater than 7) was observed for the formation of 1,N6-ethenoadenosine from ethyl carbamate, and high isotope effects (6-8) were also noted for the formation of vinyl carbamate and 2-hydroxyethyl carbamate.
来源:Hazardous Substances Data Bank (HSDB)