Showing structure for (1'r,2r,2's,4'r,5's,6'r,8'r,11'r)-5'-[(2s,3as,6as)-2h,3h,3ah,6ah-furo[2,3-b]furan-2-yl]-11'-(acetyloxy)-4',5'-dimethyl-12'-oxaspiro[oxirane-2,10'-tricyclo[6.2.2.0¹,⁶]dodecan]-2'-yl acetate