InChI=1/C14H15N3O3/c1-8(13(19)15-2)16-14(20)11-7-12(18)9-5-3-4-6-10(9)17-11/h3-8H,1-2H3,(H,15,19)(H,16,20)(H,17,18)/t8-/m0/s1/f/h15-17H 4972771DE2ABE597