InChI=1S/C17H21NO6S/c1-3-4-5-6-11-17(2,23)14(19)12-13(24-11)9-7-25-8-10(16(21)22)18(9)15(12)20/h8-9,11,23H,3-7H2,1-2H3,(H,21,22)/t9-,11+,17+/m1/s1