InChI=1/C14H21N3O3/c1-4-12(20-5-2)13(18)16-10-6-8-11(9-7-10)17-14(19)15-3/h6-9,12H,4-5H2,1-3H3,(H,16,18)(H2,15,17,19)/t12-/m1/s1/f/h15-17H 3DD6CBE64C998561