Using O=C1NC(=O)C2(CC(C(=O)O)Oc3ccc(F)cc32)N1, COCCOCCOCCOCCO to produce COCCOCCOCCOCCOC(=O)C1CC2(NC(=O)NC2=O)c2cc(F)ccc2O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.