Using CC(=O)OCCN1C(=O)CN2CCOC2(c2ccccc2F)c2cc(Cl)ccc21 to produce O=C1CN2CCOC2(c2ccccc2F)c2cc(Cl)ccc2N1CCO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.