Using O=C1NC(=O)C(=Cc2ccc(OCCc3ccccc3)cc2)S1, N#CCCl to produce N#CCN1C(=O)SC(=Cc2ccc(OCCc3ccccc3)cc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.