InChI=1S/C19H24N2O4.C4H6O6/c1-13(9-14-3-6-16(25-2)7-4-14)20-11-19(24)15-5-8-18(23)17(10-15)21-12-22;5-1(3(7)8)2(6)4(9)10/h3-8,10,12-13,19-20,23-24H,9,11H2,1-2H3,(H,21,22);1-2,5-6H,(H,7,8)(H,9,10)/t13-,19+;1-,2-/m11/s1