InChI=1S/C15H22N2O7S/c1-22-12-9-11(5-6-14(18)17-8-4-3-7-16)10-13(23-2)15(12)24-25(19,20)21/h5-6,9-10H,3-4,7-8,16H2,1-2H3,(H,17,18)(H,19,20,21)