Using CCOC(=O)c1sc2nc(Cc3ccsc3)[nH]c(=O)c2c1C to produce Cc1c(C(=O)O)sc2nc(Cc3ccsc3)[nH]c(=O)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.