InChI=1/C20H25N3O4S/c1-28(26,27)19-12-10-16(11-13-19)20-15-17(7-5-6-14-22(24)25)21-23(20)18-8-3-2-4-9-18/h5,7,10-13,15,18H,2-4,6,8-9,14H2,1H3/b7-5+ BEA222D6C282A3F2