Using Cn1nccc1-c1nn(-c2ccccc2)cc(O)c1=O, Cn1c(CCCO)nc2ccccc21 to produce Cn1nccc1-c1nn(-c2ccccc2)cc(OCCCc2nc3ccccc3n2C)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.