InChI=1/C20H20N2O3/c1-12-8-9-17-15(10-12)21-18(23)20(3,25-17)19(24)22-13(2)11-14-6-4-5-7-16(14)22/h4-10,13H,11H2,1-3H3,(H,21,23)/t13-,20+/m0/s1/f/h21H EBAD5A8196602C61