InChI=1S/C15H10F3N3O4S2/c16-15(17,18)9-5-7(1-4-12(9)27(20,23)24)10-3-2-8(25-10)6-11-13(22)21-14(19)26-11/h1-6H,(H2,19,21,22)(H2,20,23,24)/b11-6-