133201-16-8 3'-Azido-3'-deoxythymidine-5'-(ethyl methoxyleucinyl)phosphate 5'MeOLeuPO3(Et) AZT AIDS-002031 AIDS002031 L-Leucine, N-(3'-azido-3'-deoxy-P-ethyl-5'-thymidylyl)-, methyl ester, (R)-