Using OCc1csc(N2CCOCC2)n1, COc1cc(O)c2cc(-c3cn4nc(OC)sc4n3)oc2c1 to produce COc1cc(OCc2csc(N3CCOCC3)n2)c2cc(-c3cn4nc(OC)sc4n3)oc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.