1-((1-(4-Hydroxyphenyl)-5-oxo-3-pyrrolidinyl)carbonyl)piperidine 39630-17-6 5-22-06-00046 (Beilstein Handbook Reference) BRN 0431222 Piperidine, 1-((1-(4-hydroxyphenyl)-5-oxo-3-pyrrolidinyl)carbonyl)-