Using O=C1c2ccccc2COc2ccc(OCc3ccc4ccccc4n3)cc21, CCOP(=O)(CC(=O)OC)OCC to produce COC(=O)C=C1c2ccccc2COc2ccc(OCc3ccc4ccccc4n3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.