Trifluoro-methanesulfonic acid (3aR,6S,6aR)-5-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-6-yl ester

(2S,3S,4R,5R)3-azido-5-{6-[5-chloro-2-(2-oxo-2-(4-tert-butyloxycarbonyl)-piperazin-1-yl-ethoxy)-benzylamino]-purin-9-yl}-4-hydroxy-tetrahydro-furan-2-carboxylic acid methylamide

2-cyano-4-chlorophenoxyacetic acid tert-butyl ester

2-aminomethyl-4-chlorophenoxyacetic acid tert-butyl ester

(2R,3R,4S,5S)(2-{[9-(4-azido-3-hydroxy-5-methylcarbamoyl-tetrahydrofuran-2-yl)-9H-purin-6-ylamino]-methyl}-4-chlorophenoxy)acetic acid tert-butyl ester