1H-[1,4]oxazino[2,3-c]isoquinolin-2(3H)-one, 6-phenyl- 6-phenyl-1H-[1,4]oxazino[2,3-c]isoquinolin-2(3H)-one InChI=1/C17H12N2O2/c20-14-10-21-17-16(18-14)13-9-5-4-8-12(13)15(19-17)11-6-2-1-3-7-11/h1-9H,10H2,(H,18,20