InChI=1/C18H25N5O2/c1-11(17-12(2)21-23(6)13(17)3)19-18(25)20-15-7-9-16(10-8-15)22(5)14(4)24/h7-11H,1-6H3,(H2,19,20,25)/t11-/m1/s1/f/h19-20H 4D95B3357C217E8E