InChI=1/C19H20N2O4/c20-19(23)13-3-1-4-17(11-13)25-15-8-6-14(7-9-15)21-18(22)12-16-5-2-10-24-16/h1,3-4,6-9,11,16H,2,5,10,12H2,(H2,20,23)(H,21,22)/t16-/m1/s1/f/h21H,20H2	D3A9027510A8D1FF