(2R,3S,2'R,2''S,4''aR,8''aS)-2-[2'-(2'',4''a,6'',7'',8'',8''a)-(hexahydropyrano[3,2-b]pyran-2''yl)-2'-hydroxyethyl]tetrahydropyran-3-ol

(3S,4aR,8aS)-3-(methoxymethoxy)octahydropyrano[3,2-b]pyran-2-ol

(3S,4aR,8aS)-3-methoxymethoxy-hexahydro-pyrano[3,2-b]pyran-2-one