38123-79-4 Piperazine, 1-((5-oxo-1,2-diphenyl-3-pyrrolidinyl)carbonyl)-, monohydrochloride, trans- trans-1-((5-Oxo-1,2-diphenyl-3-pyrrolidinyl)carbonyl)piperazine monohydrochloride trans-Diphenyl-1,5 oxo-2 piperazinocarbonyl-4 pyrrolidine chlorhydrate [French]