107734-48-5 2(1H)-Quinolinone, 4-(5-amino-1,3,4-thiadiazol-2-yl)- 2-Hydroxy-4-(2-amino-1,3,4-thiadiazol-5-yl)quinoline 4-(5-Amino-1,3,4-thiadiazol-2-yl)-2(1H)-quinolinone