AIDS-073260 AIDS073260 Acetic acid 4,5-diacetoxy-6-acetoxymethyl-2-[5-(2-amino-thiazol-4-yl)-1-methyl-2-methylsulfanyl-6-oxo-1,6-dihydro-pyrimidin-4-ylamino]-tetrahydro-pyran-3-yl ester NSC645740