InChI=1S/C15H16N2.C4H4O4/c1-2-5-13(6-3-1)8-9-14-15-7-4-11-17(15)12-10-16-14;5-3(6)1-2-4(7)8/h1-7,11H,8-10,12H2;1-2H,(H,5,6)(H,7,8)