Using Cc1cc2ccccc2[nH]1, COC(=O)c1ccc(CCC=O)cc1 to produce COC(=O)c1ccc(CCCc2c(C)[nH]c3ccccc23)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.