Using COc1cc2c(cc1OC)C(c1ccccc1)N1CCNCC1C2, COC(=O)CBr to produce COC(=O)CN1CCN2C(Cc3cc(OC)c(OC)cc3C2c2ccccc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.