Using CCS, Clc1cccc(-c2nn3ccccc3c2-c2ccnc3ccccc23)n1 to produce CCSc1cccc(-c2nn3ccccc3c2-c2ccnc3ccccc23)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.