for the following products
5'-O-DMT-N4-Benzoyl-5-Methyl-2'-deoxycytidine 3'-CE phosphoramidite | Dmt-5me-dc(bz)-ce phosphoramidite | N4-Benzoyl-2'-deoxy-5'-O-DMT-5-methylcytidine 3'-CE phosphoramidite and 5'-O-(4,4'-dimethoxytrityl)-5-methyl-N4-benzoyl-2'-deoxycytidine-3'-(2-cyanoethyl-N,N-diisopropyl)phosphoramidite