2-((1R,3aS,7aR)-1-methylhexahydrospiro[indene-5,2'-[1,3]dioxolan]-7a(1H)-yl)ethan-1-amine

ethyl (1R)-1-methylhexahydrospiro[indene-5,2'-[1,3]dioxolane]-7a(1H)-carboxylate

((1R,3aS,7aR)-1-methylhexahydrospiro[indene-5,2'-[1,3]dioxolan]-7a(1H)-yl)methyl methanesulfonate