InChI=1/C18H22N2O5/c21-15(10-18(17(23)24)7-3-1-2-4-8-18)19-12-5-6-14-13(9-12)20-16(22)11-25-14/h5-6,9H,1-4,7-8,10-11H2,(H,19,21)(H,20,22)(H,23,24)/p-1/fC18H21N2O5/h19-20H/q-1 E88B1C5BBB7E6C54