(3aR,7aS)-2,2-dimethyl-3a,7a-dihydrobenzo[d][1,3]dioxole

anti-3,5,7,8-tetraoxa-4,4-dimethyl-tricyclo[5.2.2.02,6]undec-10-ene

(1S,4R,5S,6R)-4-(tert-butyldimethylsiloxy)-5,6-(isopropylidenedioxy)cyclohex-2-enyl acetate

(+/-)-(1,3/2,4)-1,2,3,4-tetra-O-acetyl-5-cyclohexene-1,2,3,4-tetrol

(1RS,2SR,3RS,4RS)-2,3-dibromocyclohex-5-ene-1,4-diol