Using CCn1ncnc1CCl, Cc1nnc(-c2ccccc2)c2nc(O)c(C3CCCC3)n12 to produce CCn1ncnc1COc1nc2c(-c3ccccc3)nnc(C)n2c1C1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.