134935-03-8 2'-(n-Butylamino)-5'-(4-methoxytrityl)-3'-deoxythymidine 2'BuNH-5'(4MeOTrityl)dT AIDS-002387 AIDS002387 Uridine, 2'-(butylamino)-2',3'-dideoxy-5'-O-[(4-methoxyphenyl)diphenylmethyl]-5-methyl-