Using COc1ccc(C(=O)CBr)cc1, O=C1Nc2ccccc2CN1C1CCNCC1 to produce COc1ccc(C(=O)CN2CCC(N3Cc4ccccc4NC3=O)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.