Using O=C1CCC(=O)N1Br, CC(=O)NCC1OC(=O)N2c3ccccc3CC12 to produce CC(=O)NCC1OC(=O)N2c3ccc(Br)cc3CC12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.