1 D6K (4~{S},6~{R})-2,2,6-trimethyl-1,3-dioxan-4-ol 1.000 2 X3E (2~{S},6~{R})-2,6-dimethyl-1,3-dioxane-4,4-diol 0.818 3 X3B 2-methylidene-1,3-dioxane-4,4-diol 0.727