Using CCOC(=O)c1nc(-c2csc(-c3ccc(OCC)c(OCC)c3)n2)ccc1O to produce CCOc1ccc(-c2nc(-c3ccc(O)c(C(=O)O)n3)cs2)cc1OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.