133201-19-1 3'-Azido-3'-deoxythymidine-5'-(propyl methoxyvalinyl)phosphate 5'MeOValPO3(Pr)AZT AIDS-002035 AIDS002035 L-Valine, N-(3'-azido-3'-deoxy-P-propyl-5'-thymidylyl)-, methyl ester, (R)-