InChI=1/C18H21NO4S/c1-11-10-12(2)15(5)18(14(11)4)24(21,22)19-17(20)9-8-16-7-6-13(3)23-16/h6-10H,1-5H3,(H,19,20)/b9-8+/f/h20H/b9-8+,19-17? 495450C635D5A15D