Using CC(=O)OCCC(=O)Nc1nc(CN2CCC(c3c[nH]c4ccccc34)CC2)cs1 to produce O=C(CCO)Nc1nc(CN2CCC(c3c[nH]c4ccccc34)CC2)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.