Standard InChI: InChI=1S/C21H21N5O6/c22-21-25-15-6-5-13(9-14(15)19(30)26-21)23-10-11-1-3-12(4-2-11)18(29)24-16(20(31)32)7-8-17(27)28/h1-6,9,16,23H,7-8,10H2,(H,24,29)(H,27,28)(H,31,32)(H3,22,25,26,30)/t16-/m0/s1
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