Using O=C(CO[C@@H]1CC[C@H](N2C(=O)c3ccccc3C2=O)c2ccccc21)N1CCOCC1 to produce N[C@H]1CC[C@@H](OCC(=O)N2CCOCC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.