InChI=1S/C20H19ClN4O4S/c21-16-9-12-8-13(24-19(12)30-16)18(28)23-14-7-11-3-1-2-4-15(11)25(20(14)29)10-17(27)22-5-6-26/h1-4,8-9,14,24,26H,5-7,10H2,(H,22,27)(H,23,28)/t14-/m0/s1