Using CC(C)(C)C(=O)OCn1c(=O)c2[nH]c(Cl)nc2n(COC(=O)C(C)(C)C)c1=O, CC(C)=CCBr to produce CC(C)=CCn1c(Cl)nc2c1c(=O)n(COC(=O)C(C)(C)C)c(=O)n2COC(=O)C(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.