AIDS-073261 AIDS073261 Acetic acid 3,5-diacetoxy-2-acetoxymethyl-6-[5-(2-amino-thiazol-4-yl)-2-hydroxy-1-methyl-6-oxo-1,6-dihydro-pyrimidin-4-ylamino]-tetrahydro-pyran-4-yl ester NSC645741