Using CCCCCN(C=O)c1cccc(CO/N=C(/c2ccccc2)c2nnnn2C)n1 to produce CCCCCNc1cccc(CO/N=C(/c2ccccc2)c2nnnn2C)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.