Benzoic acid 2-((S)-7a-methyl-1,5-dioxo-2,3,5,6,7,7a-hexahydro-1H-inden-4-yl)-ethyl ester

(1S,3aS,4S,7aS)-4-(2-hydroxyethyl)-7a-methyloctahydrospiro[indene-5,2'-[1,3]dithiolan]-1-ol

Benzoic acid 6-(1-methyl-2,5-dioxo-cyclopentyl)-4-oxo-hexyl ester

Benzoic acid 2-[(1S,7aS)-1-(2,2-dimethyl-propionyloxy)-7a-methyl-5-oxo-2,3,5,6,7,7a-hexahydro-1H-inden-4-yl]-ethyl ester

2-((1S,3aS,4S,7aS)-7a-methyl-1-(pivaloyloxy)octahydrospiro[indene-5,2'-[1,3]dithiolan]-4-yl)ethyl benzoate