Using CCCCc1ncc(/C=C(/CO)Cc2ccccc2)n1Cc1ccccc1Cl, COC(=O)CBr to produce CCCCc1ncc(C/C=C/OC(Cc2ccccc2)C(=O)O)n1Cc1ccccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.