Using CCOCn1c(C(OC(C)=O)c2ccccc2)c(C(C)C)c(=O)[nH]c1=O to produce CCOCn1c(Cc2ccccc2)c(C(C)C)c(=O)[nH]c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.