Using CCCCn1c(NNC(=S)NCC(=O)OCC)cc(=O)n(CCC)c1=O to produce CCCCn1c(=O)n(CCC)c(=O)c2c(NCC(=O)OCC)n[nH]c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.