InChI=1/C17H20N2O5/c20-14-5-12(4-13(15(14)21)19(23)24)16(22)18-17-6-9-1-10(7-17)3-11(2-9)8-17/h4-5,9-11,20-21H,1-3,6-8H2,(H,18,22)/f/h18H A553402F088E08C1