p. 3288 - 3290
(2008/09/20)p. 4129 - 4132
(2007/10/02)[(3aR,5S,6aR)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl]methyl benzoate
acetic anhydride
Diisopropyl-phosphoramidous acid (2R,3R,5S)-5-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-2-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester
3'-deoxy-5'-O-dimethoxytrityl-5-methyluridine
benzoic acid 4-acetoxy-5-(4-amino-5-oxo-5H-pyrido[2,3-d]pyrimidin-8-yl)-tetrahydro-furan-2-ylmethyl ester
2'-O-Acetyl-5'-O-benzoyl-4-N-isobutyryl-3'-deoxycytidine
2'-O-acetyl-5'-O-benzoyl-3'-deoxy-5-methyluridine