@article{CTT100848063,
  author = {Yuji Miyazaki and Fujimaru Tanaka and Kenji Takeshita and Atsunori Mori},
  title = {Synthetic Approach to N,N,N',N'-Tetrakis[(2-pyridylmethyl)ethylenediamine] (TPEN) Derivatives through Ruthenium-Catalyzed-[2+2+2]cycloaddition},
  journal = {HETEROCYCLES},
  year = 2011,
}