参考文献:10.1007/bf02841026|10.1631/jzus.2005.b0617 摘要:Navneet A, Pradeep M. Synthesis and evaluation of 4-substituted semicarbazones of levulinic acid for anticonvulsant activity. Journal of Zhejiang University-SCIENCE B. 2005 Jul;6(7):617–21. doi: 10.1007/bf02841026.