Using C=C(C)C(=O)OCCO, O=C(O)c1ccc2sc3ccccc3c(=O)c2c1 to produce C=C(C)C(=O)OCCOC(=O)c1ccc2sc3ccccc3c(=O)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.