IUPAC:(3S,4aR,5S,6R,6aR,10R,10aS,10bR)-5,6-bis(acetyloxy)-4a,6a,7,10b-tetramethyl-5'-oxo-1,2,4a,5,6,6a,9,10,10a,10b-decahydrospiro[naphtho[2,1-b]pyran-3,3'-oxolan]-10-yl 2-methylpropanoate
IUPAC:(3S,4aR,5S,6R,6aR,10R,10aS,10bR)-5,6-bis(acetyloxy)-4a,6a,7,10b-tetramethyl-5'-oxo-1,2,4a,5,6,6a,9,10,10a,10b-decahydrospiro[naphtho[2,1-b]pyran-3,3'-oxolan]-10-yl 2-methylpropanoate