InChI=1/C15H18N2O3/c1-10(18)9-16-14-7-11(8-15(19)20-2)17-13-6-4-3-5-12(13)14/h3-7,10,18H,8-9H2,1-2H3,(H,16,17)/t10-/m0/s1/f/h16H 128B42DCAB2F0258