(1R)-1-((4R,4aR,8aS)-2,6-Di-p-tolyltetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl)ethane-1,2-diol 5g

(1R)-1-((4R,4aR,8aS)-2,6-Di-p-tolyltetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl)ethane-1,2-diol 5g