InChI=1/C15H18N2O4/c18-14-7-2-1-6-13(14)16-15(19)9-8-11-4-3-5-12(10-11)17(20)21/h3-5,8-10,13-14,18H,1-2,6-7H2,(H,16,19)/b9-8+/t13-,14-/m1/s1/f/h16H	301C27EC1D15E016