3H-isoxazolo[3,4,5-ef][1,4]benzoxazepin-4(5H)-one InChI=1/C9H6N2O3/c12-7-4-13-5-2-1-3-6-8(5)9(10-7)11-14-6/h1-3H,4H2,(H,10,11,12