InChI=1/C19H17N3O4S/c23-18(13-7-9-14(10-8-13)22(24)25)21(12-15-4-3-11-26-15)19-20-16-5-1-2-6-17(16)27-19/h1-2,5-10,15H,3-4,11-12H2/t15-/m0/s1 3497A1944F625FC6