InChI=1S/C17H22N2O2.C4H4O4/c1-20-16-8-6-13(12-17(16)21-2)5-7-14-15-4-3-10-19(15)11-9-18-14;5-3(6)1-2-4(7)8/h3-4,6,8,10,12,14,18H,5,7,9,11H2,1-2H3;1-2H,(H,5,6)(H,7,8)