Production of Stealthin C Involves an S–N-Type Smiles Rearrangement

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Production of Stealthin C Involves an S–N-Type Smiles Rearrangement

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Title: Production of Stealthin C Involves an S–N-Type Smiles Rearrangement
Author: Wang, Peng; Hong, Gloria J.; Wilson, Matthew Ryan; Balskus, Emily Patricia

Note: Order does not necessarily reflect citation order of authors.

Citation: Wang, Peng, Gloria J. Hong, Matthew R. Wilson, and Emily P. Balskus. 2017. “Production of Stealthin C Involves an S–N-Type Smiles Rearrangement.” Journal of the American Chemical Society 139 (8) (February 16): 2864–2867. doi:10.1021/jacs.6b10586.
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Abstract: The kinamycin family of aromatic polyketide natural products contains an atypical angucycline ring system substituted with a diazo group. The enzymatic chemistry involved in constructing both of these structural features has been largely unexplored. Here we report the in vivo and in vitro production of seongomycin, a shunt product from this pathway, and stealthin C, a proposed biosynthetic precursor to the kinamycins. We show that a single enzyme, the flavin-dependent monooxygenase AlpJ, can generate these metabolites from N-acetyl-l-cysteine and l-cysteine, respectively, and that the synthesis of stealthin C likely proceeds via a nonenzymatic S–N-type Smiles rearrangement. This unexpected route to stealthin C reveals a distinct approach to install aromatic amino groups in metabolites and raises questions about the intermediacy of this species in kinamycin production.
Published Version: 10.1021/jacs.6b10586
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:32749937
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