Using CCOC(=O)Cc1cccc(Oc2ccc(Br)cc2CN2CCCC2=O)c1 to produce O=C(O)Cc1cccc(Oc2ccc(Br)cc2CN2CCCC2=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.