InChI=1/C11H20N2O2/c12-11(14)10-1-4-13(5-2-10)7-9-3-6-15-8-9/h9-10H,1-8H2,(H2,12,14)/p+1/t9-/m0/s1/fC11H21N2O2/h13H,12H2/q+1 DE9319045516671A