(Diethoxy-3',4'phenyl)-1 oxo-2 piperazinocarbonyl-4 pyrrolidine chlorhydrate [French] 1-((1-(3,4-Diethoxyphenyl)-5-oxo-3-pyrrolidinyl)carbonyl)piperazine monohydrochloride 38160-22-4 Piperazine, 1-((1-(3,4-diethoxyphenyl)-5-oxo-3-pyrrolidinyl)carbonyl)-, monohydrochloride