38123-89-6 Piperazine, 1-((1-(4-ethoxyphenyl)-5-oxo-2-phenyl-3-pyrrolidinyl)carbonyl)-, monohydrochloride, trans- trans-(p-Ethoxyphenyl)-1 oxo-2 piperazinocarbonyl-4 phenyl-5 pyrrolidine chlorhydrate [French]