InChI=1/C16H18N4O4S/c1-10-11(6-17-16(7-21,8-22)9-23)14(24)20(19-10)15-18-12-4-2-3-5-13(12)25-15/h2-6,17,21-23H,7-9H2,1H3/b11-6- CC8C0CF257FBF714