InChI=1S/C19H24N2O7S/c1-13(9-14-3-6-16(27-2)7-4-14)20-11-18(23)15-5-8-19(28-29(24,25)26)17(10-15)21-12-22/h3-8,10,12-13,18,20,23H,9,11H2,1-2H3,(H,21,22)(H,24,25,26)