(4aR,6R,8S,8aR)-6,8-Bis-(tert-butyl-dimethyl-silanyloxy)-octahydro-isochromen-3-one

(((4aR,6R,8S,8aR)-octahydrospiro[isochromene-3,2'-[1,3]dithiane]-6,8-diyl)bis(oxy))bis(tert-butyldimethylsilane)

(6R,8S,8aR)-6,8-Bis-(tert-butyl-dimethyl-silanyloxy)-1,5,6,7,8,8a-hexahydro-isochromen-3-one