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Thiolactomide: A New Homocysteine Thiolactone Derivative from Streptomyces sp. with Neuroprotective Activity.

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A new homocysteine thiolactone derivative, thiolactomide (1), was isolated along with a known compound, N-acetyl homocysteine thiolactone (2), from a culture extract of soil-derived Streptomyces sp. RK88-1441. The structures of… Click to show full abstract

A new homocysteine thiolactone derivative, thiolactomide (1), was isolated along with a known compound, N-acetyl homocysteine thiolactone (2), from a culture extract of soil-derived Streptomyces sp. RK88-1441. The structures of these compounds were elucidated by detailed NMR and MS spectroscopic analyses with literature study. Biological evaluation studies revealed that both 1 and 2 exhibit neuroprotective activity against 6-hydroxydopamine (6-OHDA) mediated neurotoxicity by blocking generation of hydrogen peroxide in neuroblastoma SH-SY5Y cells.

Keywords: thiolactone derivative; homocysteine; homocysteine thiolactone; new homocysteine; neuroprotective activity

Journal Title: Journal of microbiology and biotechnology
Year Published: 2021

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