Using COC(=O)c1ccc(-c2c(SC)oc3cc(OC)ccc3c2=O)cc1 to produce CSc1oc2cc(O)ccc2c(=O)c1-c1ccc(C(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.