Using CCOC(=O)CCCCCCCCBr, Cc1ccc(-c2nc3c(nc2-c2ccc(C)cc2)NC(=O)CC3)cc1 to produce CCOC(=O)CCCCCCCCN1C(=O)CCc2nc(-c3ccc(C)cc3)c(-c3ccc(C)cc3)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.