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5'-O-Dimethoxytrityl-deoxythymidine 5-CARBOXYFLUORESCEIN DIACETATE 5'-O-Dimethoxytrityl-N-isobutyryl-deoxyguanosine 4,4'-DIMETHOXYBENZHYDROL 6-CARBOXYFLUORESCEIN DIACETATE N6-Benzoyl-5'-O-(4,4'-dimethoxytrityl)-2'-deoxyadenosine DMT-2'O-Methyl-rU Phosphoramidite DMT-dA(bz) Phosphoramidite Benzhydrol CYCLOPROPYL 4-METHOXYDIPHENYLCARBINOL