InChI=1/C16H19N5O2/c17-9-12-14(20)23-16(21-5-7-22-8-6-21)4-2-1-3-13(16)15(12,10-18)11-19/h13H,1-8,20H2/t13-,16-/m0/s1 DDA3F060B7477984