Using OCCOC1COC2C(Nc3nc(Cl)ncc3Cl)COC12, Cn1cc(N)cn1 to produce Cn1cc(Nc2ncc(Cl)c(NC3COC4C(OCCO)COC34)n2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.