InChI=1/C14H14N3O3S/c1-17-7-8-20-14-5-4-12(9-13(14)17)21(18,19)16-11-3-2-6-15-10-11/h2-6,9-10H,7-8H2,1H3/q-1 55F21E2C6C4634AF