S-[5-[[(2,3-dichlorophenyl)sulfonyl][[2-(trimeihylsilyl)ethoxy]methyl]amino]-6-methoxypyrazin-2-yl]-N-[(1,1-dimethylethoxy)carbonyl]-L-cysteine methyl ester

3-{5-[S-(N-Boc-cysteine methyl ester)]pentyl}-3',5'-bis-O-(tert-butyldimethylsilanyl)thymidine

methyl (2R,2'R,3'S,1''S)-3-[3-benzyloxycarbonylamino-2-((tert-butyloxycarbonylamino)(phenyl)methyl)-4-phenylbutyryl]sulfanyl-2-tert-butyloxycarbonylaminopropanoate

N-[(1,1-dimethylethoxy)carbonyl]-S-[[6-(2,5-dimethyl-1H-pyrrol-1-yl)-4-methyl-2-pyridinyl]methyl]-L-cysteine, methyl ester