Using CCOC(=O)c1cc(OC)c(OCC)c(OCC)c1-c1c(C(=O)OCC)cc(OC)c2c1OCO2 to produce CCOc1c(OC)cc(C(=O)O)c(-c2c(C(=O)O)cc(OC)c3c2OCO3)c1OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.