InChI=1S/C22H25BrN2O4S/c1-5-29-22(28)20-18(12-30-14-8-6-13(26)7-9-14)25(4)17-10-16(23)21(27)15(19(17)20)11-24(2)3/h6-10,26-27H,5,11-12H2,1-4H3