Using O=C(CSC1=NCCCN1)C1(c2ccc(Cl)c(Cl)c2)CCC1 to produce Clc1ccc(C2(C3=CSC4=NCCCN34)CCC2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.