InChI=1/C21H21N3O4S/c1-16-15-22(19-7-9-20(10-8-19)24(25)26)12-13-23(16)29(27,28)21-11-6-17-4-2-3-5-18(17)14-21/h2-11,14,16H,12-13,15H2,1H3/t16-/m1/s1 6E3300297CB313FF