InChI=1/C20H20N2O3/c23-17-7-5-15(16-6-8-19(25)22-20(16)17)18(24)11-21-14-9-12-3-1-2-4-13(12)10-14/h1-8,14,18,21,23-24H,9-11H2,(H,22,25)/t18-/m0/s1/f/h23h,21-22H	6AC4DBCAD77DA002