InChI=1/C16H16N2O2S/c1-3-8-20-12-7-5-4-6-11(12)15-17-13-10(2)9-21-14(13)16(19)18-15/h4-7,9H,3,8H2,1-2H3,(H,17,18,19)/f/h18H 5D82AF168629709A