InChI=1/C16H20N2O3/c1-4-11-16(19)18(9-10(2)3)13-8-15-14(7-12(13)17-11)20-5-6-21-15/h7-8,11,17H,2,4-6,9H2,1,3H3/t11-/m0/s1 DED8381B37B9FBC2