InChI=1/C20H20N2O3/c1-3-14-18(19(23)20(21)24)17-15(10-7-11-16(17)25-2)22(14)12-13-8-5-4-6-9-13/h4-11H,3,12H2,1-2H3,(H2,21,24)/f/h21H2 06F322BF219DA357