Using O=C(O)CC(CSCCNC(=O)CC1CCCCC1)C(=O)c1cccnc1, CCN(CC)CC to produce CN(C)C(=O)CC(CSCCNC(=O)CC1CCCCC1)C(=O)c1cccnc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.