Using COC(=O)C1=C(C)NC2=C(C(=O)COC2)C1c1ccc(C)c(Br)c1 to produce Cc1ccc(C2C3=C(COCC3=O)NC3=C2C(=O)OC3)cc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.