InChI=1S/C16H15N5O3S/c17-16(18)21-25(23,24)11-7-5-10(6-8-11)19-9-13-12-3-1-2-4-14(12)20-15(13)22/h1-9,19H,(H,20,22)(H4,17,18,21)/b13-9-