Using Cc1ccc2c(c1)CC(=O)c1cc(Cl)ccc1S2, O=C1OCCN1CCN1CCNCC1 to produce Cc1ccc2c(c1)C=C(N1CCN(CCN3CCOC3=O)CC1)c1cc(Cl)ccc1S2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.