InChI=1/C20H16N2O3S/c1-22(13-15-9-5-11-24-15)20-21-17(16-10-6-12-25-16)19(26-20)18(23)14-7-3-2-4-8-14/h2-12H,13H2,1H3 2F6D6215220D3FA9