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(2007/10/02)5'-dimethoxytrityl 2'-tert-butyldimethyl silyl N-isobutyryl guanosine 3'-p-chlorophenyl β-cyanoethyl phosphotriester
9-(5-O-dimethoxytrityl-β-D-ribofuranosyl)-2-N-isobutyrylguanine
tert-butyldimethylsilyl chloride
N-(9-((2R,3R,4R,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-3-((tert-butyldimethylsilyl)oxy)-4-hydroxytetrahydrofuran-2-yl)-6-oxo-6,9-dihydro-1H-purin-2-yl)isobutyramide
2',3'-bis-O-(tert-butyldimethylsilyl)uridine