Using CS(=O)(=O)OCCOc1ccc(C=O)cc1, Oc1cnc(-c2ccccc2)c(-c2ccccc2)n1 to produce O=Cc1ccc(OCCOc2cnc(-c3ccccc3)c(-c3ccccc3)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.