Using CCOCCOCCO, COc1cccc(N2CCN(CCCCc3c[nH]c4ccc(C#N)cc34)CC2)c1 to produce COc1cccc(N2CCN(CCCCc3c[nH]c4ccc(C(N)=O)cc34)CC2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.