Using COC(OC)c1cccc(-c2ccnc(NCCc3ccc(O)cc3)n2)c1 to produce O=Cc1cccc(-c2ccnc(NCCc3ccc(O)cc3)n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.