38123-83-0 Piperazine, 1-((1-(4-ethoxyphenyl)-5-oxo-2-phenyl-3-pyrrolidinyl)carbonyl)-, hydrochloride, cis- cis-(p-Ethoxyphenyl)-1 oxo-2 piperazinocarbonyl-4 phenyl-5 pyrrolidine chlorhydrate [French]