Using CCOC(=O)C=Nc1cccc(Nc2ncc(F)c(Nc3ccc4c(c3)OCCO4)n2)c1 to produce O=C(O)C=Nc1cccc(Nc2ncc(F)c(Nc3ccc4c(c3)OCCO4)n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.