AIDS-144102 AIDS144102 NSC666172 Spiro[9H-fluorene-9,6'(5'H)-[1,2,4]triazin]-5'-one, 3'-[(5Z)-5,6-dihydro-5-[(4-hydroxy-3-methoxyphenyl)methylene]-6-oxo-3-phenyl-1,2,4-triazin-2(1H)-yl]-1',4'-dihydro-