tert-butyl (2R,4R,5R)-4-(tert-butyldimethylsiloxy)-5-uracil-tetrahydro-2-furoate

1-(5'-(4-toluenesulfonyl)-3'-deoxy-2'-tert-butyldimethylsilyloxy-α-L-arabinofuranosyl)uracil

(2S,3S)-N2-[(tert-butoxy)carbonyl]-N3-[[N-(fluoren-9-ylmethoxy)carbonyl]-L-alanyl]-N3-methyl-diaminobutyramide

1-[5-(2S,3S)-N2-[(tert-butoxy)carbonyl]-N3-[[N-(fluoren-9-ylmethoxy)carbonyl]-L-alanyl]-N3-methyl-diaminobutyramido-3,5-dideoxy-α-L-arabinofuranodyl]uracil