(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

(S,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