A Convenient Synthesis of Parent and 2-Substituted Octahydro-2H-pyrazino[1,2-a]-pyrazines

All articles of this category A series of octahydro-2 H -pyrazino[1,2- a ]pyrazines (1,4,8-triazabicyclo[4.4.0]decanes), 7 have been prepared by a new and efficient method starting from 1,4-dibenzyl-2-ethoxycarbonylpiperazine ( 1 ). The target compounds are precursors of a new series of antibacterial quinolones.