methyl-2,3-dideoxy-2,3-epimino-5-O-para-monomethoxytrityl-α-D-ribofuranose
O,O'-bis-(trimethylsilyl)uracil
methyl 2,3-anhydro-α-D-lyxofuranoside
mono-4-methoxytrityl chloride
methyl-3-deoxy-3-azido-5-O-para-monomethoxytrityl-2-mesyloxy-α-D-arabinofuranose