Using COCCOc1c(C=O)cccc1OC, Cc1nc2sccn2c(=O)c1-c1ccc(OC(F)(F)F)cc1 to produce COCCOc1c(/C=C/c2nc3sccn3c(=O)c2-c2ccc(OC(F)(F)F)cc2)cccc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.