Using COC(=O)[C@H](CCCCN)n1c2ccccc2c2ccccc21, O=C(O)c1ccc(C(=O)c2ccccc2)cc1 to produce COC(=O)[C@H](CCCCNC(=O)c1ccc(C(=O)c2ccccc2)cc1)n1c2ccccc2c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.