InChI=1/C12H18N4O3/c13-9-3-1-2-8(4-9)12(19)15-10-5-14-16(6-10)7-11(17)18/h5-6,8-9H,1-4,7,13H2,(H,15,19)(H,17,18)/t8-,9+/m0/s1/f/h13,15H 2DE2E3553763C750