Using Cc1cccc(-c2nc(CCOc3ccc(C=CC=C4OC(=O)NC4=O)cc3)c(C)o2)c1 to produce Cc1cccc(-c2nc(CCOc3ccc(CCCC4OC(=O)NC4=O)cc3)c(C)o2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.