Using CON(C)C(=O)C1=CC2CN(C(=O)OC(C)(C)C)CC2C1, Brc1ccco1 to produce CC(C)(C)OC(=O)N1CC2C=C(C(=O)c3ccco3)CC2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.