Using CCn1c(-c2nonc2N)nc2cncc(Br)c21, C=Cc1ccc(OC)cc1 to produce CCn1c(-c2nonc2N)nc2cncc(/C=C/c3ccc(OC)cc3)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.