73036-26-7 Dispiro(furan-3(2H),1'(5'H)-naphthalene-5',2''-oxiran)-2-one,4'-(acetyloxy)-4'a-((acetyloxy)methyl)-5-(3-furanyl)decahydro-2'-methyl-, (1'R-(1'alpha(S*),2'alpha,4'beta,4'aalpha,5'alpha,8'abeta))-