InChI=1/C20H20N2O3/c1-12-19(23)22-17-9-5-8-16(18(17)25-12)20(24)21-15-10-14(11-15)13-6-3-2-4-7-13/h2-9,12,14-15H,10-11H2,1H3,(H,21,24)(H,22,23)/t12-,14?,15?/m1/s1/f/h21-22H	F94FB3E93F8670BC