中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3-(carboxymethylamino)-3-oxopropanoic acid | 6251-17-8 | C5H7NO5 | 161.114 |
Several 6-oxo caprolactam derivatives have been prepared by the ring- expansion of enaminopyrrolidones with dimethyl acetylenedicarboxylate . Other acetylenic systems did not react. The products exist in the enol form of the β- keto ester system are are very resistant towards hydrolysis. They react with hydrazine and phenylhydrazine to form pyrazolo [3,4-c] azepinones in low yield. Many of the caprolactams and their pyrazolo -fused derivatives show central nervous system activity of a depressant nature in mice.