ethyl 3-O-benzyl-6-O-tert-butyldimethylsilyl-1-O-(4,4'-dimethoxytriphenyl)methyl-2-thio-β-D-fructofuranoside

ethyl 3-O-benzyl-6-O-tert-butyldiphenylsilyl-1,4-O-(1,1,3,3-tetraisopropyldisiloxane-1,3-diyl)-2-thio-β-D-fructofuranoside

ethyl 6-O-tert-butyldiphenylsilyl-1-O-(4,4'-dimethoxytriphenyl)methyl-2-thio-β-D-fructofuranoside

ethyl 3-O-benzyl-6-O-tert-butyldiphenylsilyl-1-O-(4,4'-dimethoxytriphenyl)methyl-2-thio-β-D-fructofuranoside

4-methylene-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester