Using C1COCCN1, CN(c1cccc2cc(-c3nccs3)[nH]c12)S(=O)(=O)c1ccsc1C(=O)O to produce CN(c1cccc2cc(-c3nccs3)[nH]c12)S(=O)(=O)c1ccsc1C(=O)N1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.