Synonyms: 6,21-Secohetisan-6,11,19-trione,21-(2-hydroxyethyl)-; (+)-Thalicsessine;8,11-Methano-10a,3,6a-[1]propanyl[3]ylidene-8H-indeno[2,1-b]azocine-2,7,14(1H,6bH)-trione,decahydro-1-(2-hydroxyethyl)-3-methyl-9-methylene-, [3R-(3a,6aa,6ba,8b,10aa,11b,11ab,15R*)]-; Thalicsessine