Using COc1cc(C)c(C[P+](c2ccccc2)(c2ccccc2)c2ccccc2)s1, CCOC(=O)C=C(C)C=CC=C(C)C=O to produce CCOC(=O)C=C(C)/C=C/C=C(C)C=Cc1sc(OC)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.