AIDS-144101 AIDS144101 NSC666171 Spiro[9H-fluorene-9,6'(5'H)-[1,2,4]triazin]-5'-one, 3'-[(5Z)-5,6-dihydro-5-[(4-hydroxyphenyl)methylene]-6-oxo-3-phenyl-1,2,4-triazin-2(1H)-yl]-1',4'-dihydro-