InChI=1S/C21H21N3O5S/c1-15-5-3-7-19(21(25)23-26)20(15)24(14-16-6-4-12-22-13-16)30(27,28)18-10-8-17(29-2)9-11-18/h3-13,26H,14H2,1-2H3,(H,23,25)