InChI=1/C18H19N3O5/c1-10-14(4-5-17(22)23)18(24)21-16(19-10)9-15(20-21)11-6-12(25-2)8-13(7-11)26-3/h6-9,19H,4-5H2,1-3H3,(H,22,23)/p-1/fC18H18N3O5/q-1 7F4B435FC75DEB02