(-)-(5R)-dihydro-5-<(6'R,7'R)-4',5',6',7'-tetrahydro-6',7'-dimethylspiro<1,3-dithiolane-2,1'-indan>-7'-yl>-2(3H)-furanone

(-)-(6'R,7'R)-4',5',6',7'-tetrahydro-6',7'-dimethylspiro<1,3-dithiolane-2,1'-indan>-7'-carboxaldehyde

(+)-<(6'R,7'R)-4',5',6',7'-tetrahydro-6',7'-dimethylspiro<1,3-dithiolane-2,1'-indan>-7'-yl>methyl <(αR)-α-methylbenzyl>carbamate

(R,6'R,7'R)-α-(2-m-dioxan-2-ylethyl)-4',5',6',7'-tetrahydro-6',7'-dimethylspiro<1,3-dithiolane-2,1'-indan>-7'-methanol

ethyl (4RS,5RS)-4,5,6,7-tetrahydro-4,5-dimethyl-3-oxo-4-indancarboxylate