134934-57-9 3'-Morpholino-5'-(4-methoxytrityl)-3'-deoxythymidine 3'Morph-5'(4MeOTrityl)dT AIDS-002333 AIDS002333 Thymidine, 3'-deoxy-5'-O-[(4-methoxyphenyl)diphenylmethyl]-3'-(4-morpholinyl)-