InChI=1/C16H16N2O3/c1-3-11-8-14(16(19)17-10(11)2)20-9-15-18-12-6-4-5-7-13(12)21-15/h4-8H,3,9H2,1-2H3,(H,17,19)/f/h17H 32F5FA7B7286B06B