Using COCn1c(=O)c2c(c3c(OC)cc(CNN4CCOCC4)cc31)NCCC2 to produce COc1cc(CNN2CCOCC2)cc2[nH]c(=O)c3c(c12)NCCC3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.