Using CCOC(=O)c1nc2ccccn2c1C=O, COCCC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce CCOC(=O)c1nc2ccccn2c1/C=C/CCOC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.