InChI=1/C15H18N4O/c1-9(17-12-4-2-3-11(12)8-16)10-5-6-13-14(7-10)19-15(20)18-13/h5-7,9,11-12,17H,2-4H2,1H3,(H2,18,19,20)/t9-,11+,12-/m0/s1/f/h18-19H C820FD3A5A26AB3A