InChI=1/C14H13N3O3S/c18-21(19)6-5-9(7-21)17-14-13-12(15-8-16-14)10-3-1-2-4-11(10)20-13/h1-4,8-9H,5-7H2,(H,15,16,17)/t9-/m1/s1/f/h17H 23B1A6F845276B9C