IUPAC:(1'R,3S,4'S,7'Z,8'R,9'S)-7'-ethylidene-6-hydroxy-1-methoxy-5'-methyl-1,2-dihydro-11'-oxa-5'-azaspiro[indole-3,2'-tricyclo[6.3.1.0^{4,9}]dodecan]-2-one
IUPAC:(1'R,3S,4'S,7'Z,8'R,9'S)-7'-ethylidene-6-hydroxy-1-methoxy-5'-methyl-1,2-dihydro-11'-oxa-5'-azaspiro[indole-3,2'-tricyclo[6.3.1.0^{4,9}]dodecan]-2-one