Using OCCBr, COc1cc(-c2nc3ccc(N4CCCNCC4)cc3c(=O)n2CC(=O)NC(C)C)ccc1F to produce COc1cc(-c2nc3ccc(N4CCCN(CCO)CC4)cc3c(=O)n2CC(=O)NC(C)C)ccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.