Using COCCOCOc1c(C/C=C(\C)CCC(=O)OC)c(OC)c(C)c2c1C(=O)OC2 to produce COCCOCOc1c(C/C=C(\C)CCC(=O)O)c(OC)c(C)c2c1C(=O)OC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.