InChI=1S/C22H28N2O.C6H8O7/c1-2-22(25)24(20-11-7-4-8-12-20)21-14-17-23(18-15-21)16-13-19-9-5-3-6-10-19;7-3(8)1-6(13,5(11)12)2-4(9)10/h3-12,21H,2,13-18H2,1H3;13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)