InChI=1/C16H26N4O/c1-19(2)7-8-20(15-5-3-4-6-15)16(21)12-9-13(17)11-14(18)10-12/h9-11,15H,3-8,17-18H2,1-2H3/p+1/fC16H27N4O/h19H/q+1 C0E74B64BD25AF8B