InChI=1/C16H20N2O4S/c1-9-7-11(10(2)22-9)15(20)17-12-5-3-4-6-13(12)18-14(19)8-23-16(18)21/h7,12-13H,3-6,8H2,1-2H3,(H,17,20)/t12-,13+/m1/s1/f/h17H 01202D3BC2B73739