InChI=1/C16H20N2O3/c1-3-12(17)15(14-9-8-10(2)20-14)21-13-7-5-4-6-11(13)16(18)19/h4-9,12,15H,3,17H2,1-2H3,(H2,18,19)/p+1/t12-,15+/m0/s1/fC16H21N2O3/h17H,18H2/q+1 AB82F0EC137E7FE2