InChI=1/C17H15ClN4O4/c18-12-5-6-14-10(8-12)4-7-15(14)19-17(24)21-20-16(23)11-2-1-3-13(9-11)22(25)26/h1-3,5-6,8-9,15H,4,7H2,(H,20,23)(H2,19,21,24)/t15-/m1/s1/f/h19-21H 00199131C92F8E3B