Using O=C1CC[C@H](c2cccc(O)c2)N1c1cnc(Oc2ccc(Cl)cc2)cn1, OCCI to produce O=C1CC[C@H](c2cccc(OCCO)c2)N1c1cnc(Oc2ccc(Cl)cc2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.