InChI=1/C13H13FN2O4S2/c14-11-3-7-13(8-4-11)22(19,20)16-9-10-1-5-12(6-2-10)21(15,17)18/h1-8,16H,9H2,(H2,15,17,18)/f/h15H2 B7B8C7CB863E6B6B