Using CCCCCN1C(=O)C(C)(C)c2cc3[nH]c(CCc4cccc(NC(C)=O)c4)nc3cc21 to produce CCCCCN1C(=O)C(C)(C)c2cc3[nH]c(CCc4cccc(N)c4)nc3cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.