Using O=C1CCC(=O)O1, Oc1c(Cc2ccccc2)ccc2ccccc12 to produce O=C(O)CCC(=O)Oc1c(Cc2ccccc2)ccc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.