p. 1783 - 1796
(2007/10/03)p. 1425 - 1452
(2007/10/02)2',5'-bis-O-(tert-butyldimethylsilyl)uridine
2',5'-di-O-acetyl-3'-deoxyuridine
uridine
3'-O-phenoxythiocarbonyl-2'-O-thexyldimethylsilyl-5'-O-trityluridine
2'-O-thexyldimethylsilyl-5'-O-trityluridine