InChI=1/C19H20N2O4/c20-18(22)12-25-17-8-4-2-6-15(17)19(23)21-10-13-9-14-5-1-3-7-16(14)24-11-13/h1-8,13H,9-12H2,(H2,20,22)(H,21,23)/t13-/m1/s1/f/h21H,20H2	BFE2C287C37740A2