Using CCOP(=O)(CCCN(Cc1ccc(Cl)cc1)Cc1ccc(Cl)cc1)OCC to produce O=P(O)(O)CCCN(Cc1ccc(Cl)cc1)Cc1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.