Using CCOC(=O)CN(c1ccncc1F)n1ccc2cc(OCc3ccccc3)ccc21 to produce OCCN(c1ccncc1F)n1ccc2cc(OCc3ccccc3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.