InChI=1/C14H16N2O3S/c1-3-19-9-16-13(10(2)12(17)15-14(16)18)20-11-7-5-4-6-8-11/h4-8H,3,9H2,1-2H3,(H,15,17,18)/f/h15H 454053BBCF4B0B7B