(((3aS,4R,6S,6aS)-6-(benzyloxy)-2,2-diethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methoxy)trimethylsilane

6-氧杂双环[3.2.1]辛-3-烯-7-酮

莽草酸

莽草酸乙酯