Title: A family of pyrazinone natural products from a conserved nonribosomal peptide synthetase in Staphylococcus aureus.
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Title: Synthesis of a small library of diketopiperazines as potential inhibitors of calpain.
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Title: Synthesis of a reported calpain inhibitor isolated from Streptomyces griseus.
Journal: Bioorganic & medicinal chemistry letters 20011008