Using CN(C)C=O, CN(C)CCCc1c[nH]c2c1CCC(C)(C)C2 to produce CN(C)CCCc1c(C=O)[nH]c2c1CCC(C)(C)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.