AIDS-073259 AIDS073259 Acetic acid 4,5-diacetoxy-6-acetoxymethyl-2-[5-(2-amino-thiazol-4-yl)-2-methoxy-1-methyl-6-oxo-1,6-dihydro-pyrimidin-4-ylamino]-tetrahydro-pyran-3-yl ester NSC645739