Помогите, пожалуйста:
Synthesis of 2-iminoimidazolidin-4-one derivatives by cyclization of 2-aryl-1-(4,6-dimethylpyrimidin-2-yl)guanidines with ethyl bromoacetate, dimethyl acetylenedicarboxylate, and maleic anhydride
A. S. Shestakov, O. E. Sidorenko and Kh. S. Shikhaliev
Russian Chemical Bulletin
Volume 56, Number 7, 1423-1430,(2007)
- DOI:
http://dx.doi.org/10.1007/s11172-007-0216-8
Спасибо.
