Using CC(=O)CCC(C)=O, CCOC(=O)c1cccc2[nH]ccc12 to produce CCOC(=O)c1cccc2[nH]c3c(C)ccc(C)c3c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.