(1S,3aS,4S,7aS)-1-tert-Butoxy-2,3,3a,4,5,6,7,7a-octahydro-7a-methyl-5-oxo-1H-inden-4-acetonitril
(1S,3aS,4S,7aS)-1-tert-Butoxy-1,2,3,3a,4,6,7,7a-octahydro-7a-methyl-4-<(phenylsulfonyl)methyl>-5H-inden-5-on
1-bromo-3,5-dimethoxybenzene
(1S,3aS,4S,7aS)-1-tert-Butoxy-5,5-(ethylendioxy)-2,3,3a,4,5,6,7,7a-octahydro-7a-methyl-1H-inden-4-acetonitril