Using CN1CCc2[nH]c3ccc(Cl)cc3c2C1, O=C(CBr)c1ccc(Cl)cc1 to produce CN1CCc2c(c3cc(Cl)ccc3n2CC(=O)c2ccc(Cl)cc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.