InChI=1/C14H17N3O4S/c1-9-4-5-13(18)11(6-9)16-14(19)12-7-10(8-17(12)3)22(20,21)15-2/h4-8,15,18H,1-3H3,(H,16,19)/f/h16H B3325D6DB6C6C727