Using [N-]=C=O, Cc1c(C(=O)c2ccc(N)cc2)c2ccccc2n1CCN1CCOCC1 to produce Cc1c(C(=O)c2ccc(NC(N)=O)cc2)c2ccccc2n1CCN1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.