InChI=1/C13H20N2O3/c1-9(14-13(2,3)4)12(16)10-6-5-7-11(8-10)15(17)18/h5-9,12,14,16H,1-4H3/p+1/t9-,12-/m1/s1/fC13H21N2O3/h14H/q+1 CB993960F1275AC2