Using O=C1CCC(=O)N1Br, CC(O)c1cccc(NC(=O)C(C)(C)C)n1 to produce CC(Br)c1cccc(NC(=O)C(C)(C)C)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.