text: Amidines are organic compounds with the functional group RC(NR)NR, where the R groups can be the same or different. They are the imine derivatives of amides (RC(O)NR). The simplest amidine is formamidine, HC(=NH)NH.
  Examples of amidines include:
  * DBU
  * diminazene
  * benzamidine
  * Pentamidine
  * Paranyline