7-Methoxy-4-methyl-2-thioxo-1,2-dihydro-5-thia-1,2a-diaza-acenaphthylen-3-one 8-Methoxy-5-methyl-4-oxo-1H-4,5-dihydro-imidazo[3,4,5-d,e]-1,4-benzothiazin-2-thione AIDS-085860 AIDS085860 NSC669956