Using OCCO, O=C1CCC2(Cc3ccccn3)c3cnc(O)cc3CCCC2C1 to produce Oc1cc2c(cn1)C1(Cc3ccccn3)CCC3(CC1CCC2)OCCO3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.