InChI=1/C16H20N2O3/c17-16(7-1-2-8-16)15(19)18(11-13-5-3-9-20-13)12-14-6-4-10-21-14/h3-6,9-10H,1-2,7-8,11-12,17H2/p+1/fC16H21N2O3/h17H/q+1 0B456D9E28FBA118