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(2015/10/28)paracetaldehyde
methyl 2,3-anhydro-α-D-allopyranoside
Methyl 2,3-anhydro-4,6-O-(2-phenylsulfonyl)ethylidene-α-D-allopyranoside
methyl 4,6-di-O-benzylidene-2,3-di-O-tosyl-α-D-glucopyranoside
methyl-[O4,O6-((R)-ethylidene)-O2,O3-bis-(toluene-4-sulfonyl)-α-D-glucopyranoside]