Using CCCc1cc(Cl)c(C(=O)OCC)c(C=O)c1, COC(=O)CP(=O)(OC)OC to produce CCCc1cc(Cl)c(C(=O)OCC)c(/C=C/C(=O)OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.