Using CCOC(=O)CCc1c(C=O)[nH]c(C(=O)OCC)c1C, O=C1Cc2cc(Br)ccc2N1 to produce Cc1c(C(=O)O)[nH]c(C=C2C(=O)Nc3ccc(Br)cc32)c1CCC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.