InChI=1S/C17H23NO2.C4H4O4/c1-4-20-16(19)17(14-10-6-5-7-11-14)13-9-8-12-15(17)18(2)3;5-3(6)1-2-4(7)8/h5-8,10-12,15H,4,9,13H2,1-3H3;1-2H,(H,5,6)(H,7,8)/b;2-1+/t15-,17+;/m0./s1