Using CCO, COc1ccc2ncnc(C#CC3(O)CCC4(CC3)OCCO4)c2c1 to produce COc1ccc2ncnc(CCC3COC4(CCC(O)CC4)O3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.