25422-96-2

1H-4,7a-Propanocyclopenta[c]pyran-4(3H)-carboxylicacid, tetrahydro-4a,5,9,10-tetrahydroxy-7,10-dimethyl-1-oxo-, [4R-(4a,4ab,5b,7a,7ab,9S*,10S*)]-