p. 4947 - 4951
(2003)p. 18143 - 18149
(2007/10/03)4,4'-dimethoxytrityl chloride
N-(5-(formylamino)-4-{[(1R,3S,4R)-3-hydroxy-4-(hydroxymethyl)cyclopentyl]amino}-6-oxo-1,6-dihydro-2-pyrimidinyl)acetamide
(-)-2-azabicyclo[2.2.1]hept-5-en-3-one
N-{4-[((1R,3S,4R)-3-[(tert-butyldimethylsilyl)oxy]-4-{[(tert-butyldimethylsilyl)oxy]methyl}cyclopentyl)amino]-5-formylamino-6-oxo-1,6-di-hydro-2-pyrimidinyl}acetamide
N-{5-amino-4-[3-(tert-butyl-dimethyl-silanyloxy)-4-(tert-butyl-dimethyl-silanyloxymethyl)-cyclopentylamino]-6-oxo-1,6-dihydro-pyrimidin-2-yl}-acetamide