InChI=1/C19H20N2O4/c1-11-4-7-15(8-5-11)24-12(2)18(22)20-14-6-9-17-16(10-14)21-19(23)13(3)25-17/h4-10,12-13H,1-3H3,(H,20,22)(H,21,23)/t12-,13-/m0/s1/f/h20-21H	60AF42C227B9FD6A