IUPAC:(1'S,2S,2'R,3'R,5'S,8'R,10'R,12'R)-1',2',6'-trimethyl-4',9'-dioxaspiro[oxirane-2,13'-tetracyclo[8.2.1.0^{2,8}.0^{3,5}]tridecan]-6'-en-12'-yl (2Z)-but-2-enoate
IUPAC:(1'S,2S,2'R,3'R,5'S,8'R,10'R,12'R)-1',2',6'-trimethyl-4',9'-dioxaspiro[oxirane-2,13'-tetracyclo[8.2.1.0^{2,8}.0^{3,5}]tridecan]-6'-en-12'-yl (2Z)-but-2-enoate