label: 2-acetyl-8a-methyl-2-(2-methylbut-2-enoyloxy)-6-oxo-1,2,3,4,4a,5,6,8a-octahydronaphthalene-1-carboxylic acid
label_lc: 2-acetyl-8a-methyl-2-(2-methylbut-2-enoyloxy)-6-oxo-1,2,3,4,4a,5,6,8a-octahydronaphthalene-1-carboxylic acid