2S-cis-2-(β-methoxymethylenoxyethyl)-2,3-dihydro-3-hydroxyfurane

phenylmethyl-2,3-O-(1-methylethylidene)-5,6-didehydro-5,6-dideoxy-β-D-gulofuranoside

Acetic acid (R)-2-acetoxy-1-((3aR,4S,6R,6aR)-6-benzyloxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-ethyl ester