Using Cc1occc1Cn1c(NC2CCNCC2)nc2cccnc21, CCOCCCl to produce CCOCCN1CCC(Nc2nc3cccnc3n2Cc2ccoc2C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.