Using O=P(O)(O)Cc1ccccc1, COc1ccc(Oc2ccnc3cc(OC)c(OC)cc23)c(C=O)c1 to produce COc1ccc(Oc2ccnc3cc(OC)c(OC)cc23)c(/C=C/c2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.