Using CC(C)(C)OC(=O)NC1CCc2cc(Br)ccc21, C=CC(=O)OC to produce COC(=O)/C=C/c1ccc2c(c1)CCC2NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.