IUPAC:(1S,2S,3R,5R,9S)-5-ethenyl-2,3,9,10-tetrahydroxy-5,11,11-trimethyl-16-oxatetracyclo[7.5.2.0^{1,10}.0^{2,7}]hexadec-6-en-8-one
IUPAC:(1S,2S,3R,5R,9S)-5-ethenyl-2,3,9,10-tetrahydroxy-5,11,11-trimethyl-16-oxatetracyclo[7.5.2.0^{1,10}.0^{2,7}]hexadec-6-en-8-one