InChI=1/C20H20N4O4S/c1-2-23-18(8-14-6-4-3-5-7-14)21-22-20(23)29-12-16-10-17(24(25)26)9-15-11-27-13-28-19(15)16/h3-7,9-10H,2,8,11-13H2,1H3 CFF9D1335E31F3B6