tokens: The inhibition by PDTC was reversible unless glutathione synthesis was blocked by buthionine sulfoximine .
folded_tokens: the inhibition by pdtc was reversible unless glutathione synthesis was blocked by buthionine sulfoximine .
labels: O O O B-other_organic_compound O O O B-peptide O O O O B-other_organic_compound I-other_organic_compound O