Using O=C1CCOCC1, Cc1cc(NCCN)n2nc(C)c(-c3c(C)cc(Cl)cc3C)c2n1 to produce Cc1cc(NCCNC2CCOCC2)n2nc(C)c(-c3c(C)cc(Cl)cc3C)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.