Using O=C(O)c1cccc2nc(/C=C/c3nc4c(N5CCOCC5)cc(Cl)nn4c3-c3cccnc3)ccc12 to produce O=C([O-])c1cccc2nc(/C=C/c3nc4c(N5CCOCC5)cc(Cl)nn4c3-c3cccnc3)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.