InChI=1S/C15H20N2O6S/c18-14-3-1-2-13-10-6-11(9-17(13)14)15(19)7-12(23-24(20,21)22)4-5-16(15)8-10/h1-3,10-12,19H,4-9H2,(H,20,21,22)