Using NC1CCOCC1, Nc1c2c(nc3c(-c4ccc(-c5ccccc5)nc4)cnn13)C(=O)CC2 to produce Nc1c2c(nc3c(-c4ccc(-c5ccccc5)nc4)cnn13)C(NC1CCOCC1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.