Using COc1cccc2[nH]c(C(=O)O)cc12, NC1CCN(CCN2CCCCCC2)CC1 to produce COc1cccc2[nH]c(C(=O)NC3CCN(CCN4CCCCCC4)CC3)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.