Using O=C1CCC(=O)N1Br, CCOC(=O)C=C1C(=O)c2cccc(OC)c2CC1C to produce CCOC(=O)C=C1C(=O)c2cccc(OC)c2C(Br)C1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.