51950-94-8Relevant academic research and scientific papers
The thiamine-dependent enzyme of the vitamin K biosynthesis catalyzes reductive C-N bond ligation between nitroarenes and α-ketoacids
Chen, Min Jiao,Jiang, Ming,Guo, Zhi Hong
, p. 312 - 320 (2013)
The thiamine-dependent enzyme (1R, 2S, 5S, 6S)-2-succinyl-5-enolpyruvyl-6- hydroxyl-3-cyclohexene-1-carboxylate (SEPHCHC) synthase, also known as MenD, catalyzes a Stetter-like reaction in the biosynthesis of vitamin K. It is found to catalyze a novel reductive C-N bond ligation reaction between nitroarenes and α-ketoacids to form N-hydroxamates. This reaction likely proceeds through an enzyme-mediated, slow two-electron reduction of the nitroalkanes to form a nitroso intermediate, which serves as the electrophilic acceptor of the ketoacid-derived acyl anion. The involvement of the nitroso intermediate is supported by the fact that similar N-hydroxamates are readily formed at a much higher rate when nitroso compounds replace the nitro substrates in the chemoenzymatic reactions. These results demonstrate that the thiamine-dependent enzyme is able to catalyze novel, nonnative reactions that may find new chemoenzymatic applications.
