InChI=1/C13H16N2O3/c1-10-4-5-12(13(7-10)15(17)18)14-6-2-3-11(8-14)9-16/h4-5,7,9,11H,2-3,6,8H2,1H3/t11-/m0/s1 7F4D6907AC2DDF7A