P(=O)(O)(OCC1CC(OP(=O)(O)OCC2CC(O)C(O2)N3C=Nc4c(N)ncnc34)C(O1)N5C=Nc6c(N)ncnc56)OC7CC(COC(=O)CCC(=O)OC8CCC(=C)C(=CC=C9CCCC%10(C)C(CCC9%10)C(C)C=CC(C)C(C)C)C8)OC7N%11C=Nc%12c(N)ncnc%11%12