Using CCOC(=O)[C@H](Cc1ccccc1)NC(=O)c1cccnc1N to produce O=C1N[C@@H](Cc2ccccc2)C(=O)Nc2ncccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.