InChI=1/C16H15N3O4S/c1-8-10(9(2)23-19-8)5-15(20)18-16-17-11-6-12-13(7-14(11)24-16)22-4-3-21-12/h6-7H,3-5H2,1-2H3,(H,17,18,20)/f/h18H 6DE76B6BDCB4136A