Using COc1ccc(CCCCCCCCCCNc2ccc(C#N)cc2)cc1, CO to produce COc1ccc(CCCCCCCCCCNc2ccc(C=O)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.