InChI=1/C20H22N2O4/c1-3-19(23)21-15-5-7-16(8-6-15)22-20(24)13(2)14-4-9-17-18(12-14)26-11-10-25-17/h4-9,12-13H,3,10-11H2,1-2H3,(H,21,23)(H,22,24)/t13-/m1/s1/f/h21-22H	C202A80B4D7DF91B