Using CCCn1c(N)c(NC(=O)C23CC4CC(CC2C4)C3)c(=O)n(CC(C)=O)c1=O to produce CCCn1c(=O)n(CC(C)=O)c(=O)c2[nH]c(C34CC5CC(CC3C5)C4)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.