Using CC(N)=O, CC(=O)COC(=O)C1CN(C(=O)OCc2ccccc2)C1 to produce Cc1coc(C2CN(C(=O)OCc3ccccc3)C2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.