Cargando…

Biocatalytic C3‐Indole Methylation—A Useful Tool for the Natural‐Product‐Inspired Stereoselective Synthesis of Pyrroloindoles

Enantioselective synthesis of bioactive compounds bearing a pyrroloindole framework is often laborious. In contrast, there are several S‐adenosyl methionine (SAM)‐dependent methyl transferases known for stereo‐ and regioselective methylation at the C3 position of various indoles, directly leading to...

Descripción completa

Detalles Bibliográficos
Autores principales: Schneider, Pascal, Henßen, Birgit, Paschold, Beatrix, Chapple, Benjamin P., Schatton, Marcel, Seebeck, Florian P., Classen, Thomas, Pietruszka, Jörg
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8596708/
https://www.ncbi.nlm.nih.gov/pubmed/34399441
http://dx.doi.org/10.1002/anie.202107619
Descripción
Sumario:Enantioselective synthesis of bioactive compounds bearing a pyrroloindole framework is often laborious. In contrast, there are several S‐adenosyl methionine (SAM)‐dependent methyl transferases known for stereo‐ and regioselective methylation at the C3 position of various indoles, directly leading to the formation of the desired pyrroloindole moiety. Herein, the SAM‐dependent methyl transferase PsmD from Streptomyces griseofuscus, a key enzyme in the biosynthesis of physostigmine, is characterized in detail. The biochemical properties of PsmD and its substrate scope were demonstrated. Preparative scale enzymatic methylation including SAM regeneration was achieved for three selected substrates after a design‐of‐experiment optimization.