InChI=1/C16H20N2O3/c1-2-3-4-5-6-10-7-11-8-12(15(17)20)16(18)21-14(11)9-13(10)19/h7-9,18-19H,2-6H2,1H3,(H2,17,20)/p+1/fC16H21N2O3/h18H,17H2/q+1 CB38AABBEF27B50D