InChI=1/C17H32N4O2/c1-14-9-15(2)11-21(10-14)17(23)13-20-7-5-19(6-8-20)12-16(22)18(3)4/h14-15H,5-13H2,1-4H3/t14-,15-/m1/s1 922E29A8A6BB9F68