InChI=1/C15H18N2O4/c1-11(15(20)21)9-17(7-6-14(18)19)10-13-5-3-2-4-12(13)8-16/h2-5,11H,6-7,9-10H2,1H3,(H,18,19)(H,20,21)/p-1/t11-/m0/s1/fC15H17N2O4/h17H/q-1 D7F2516BF337611A