Synonyms: 7,20-Cycloatidane-2,3,15,16,17-pentol,21-ethyl-4-methyl-, (2a,3a,15b)-;8,10a-Ethano-11,3,6a-ethanylylidene-8H-indeno[2,1-b]azocine-4,5,9,10-tetrol,1-ethyldodecahydro-9-(hydroxymethyl)-3-methyl-, [3R-(3a,4b,5b,6aa,6ba,8b,9a,10b,10ab,11a,11ab,13S*)]-; Macrocentrine