InChI=1/C16H17NO4S/c1-10-4-7-14(16(17)18)15(8-10)21-22(19,20)13-6-5-11(2)12(3)9-13/h4-9H,1-3H3,(H2,17,18)/f/h17H2 0AE6D0D74293F819