1-Piperazinecarboxylic acid, 4-(3-((1,2,3,4,4a,9b-hexahydro-8,9b-dimethyl-3-oxo-4-dibenzofuranyl)amino)-3-oxopropyl)-, ethyl ester, (4-alpha,4a-beta,9b-beta)- 5-23-02-00322 (Beilstein Handbook Reference) 58323-04-9 BRN 0904542