methyl 2-azido-3,5-di-O-(4-chlorobenzyl)-2-deoxy-α-D-arabinofuranoside

methyl 2-O-acetyl-3,5-di-O-(4-chlorobenzyl)-β-D-ribofuranoside

methyl 2-O-acetyl-3,5-di-O-(4-chlorobenzyl)-α-D-ribofuranoside