Using CCCC1(NC(C)=O)c2ccccc2-c2[nH]c(=O)c3nccn3c21 to produce CCCC1(N)c2ccccc2-c2[nH]c(=O)c3nccn3c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.