Using CCOC(=O)/C=C/CP(=O)(OCC)OCC, COCCOCOc1c(C)cc(C=O)cc1C to produce CCOC(=O)/C=C/C=C/c1cc(C)c(OCOCCOC)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.