Using COC(=O)Nc1cn2cc(Sc3ccc(OC(C)=O)cc3)ccc2n1 to produce COC(=O)Nc1cn2cc(Sc3ccc(O)cc3)ccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.