InChI=1/C15H18N2O4S/c1-2-12-13(19)16-15(20)17(10-21-9-8-18)14(12)22-11-6-4-3-5-7-11/h3-7,18H,2,8-10H2,1H3,(H,16,19,20)/f/h16H 968CA921C68D7F42