Total Synthesis of Mutanobactins A, B from the Human Microbiome: Macrocyclization and Thiazepanone Assembly in a Single Step
Moritz Hansen, Samuel O. Yasmin, Susanne Wolfrum, Erick M. Carreira
Abstract
We report the first total syntheses of tricyclic mutanobactins A and B, lipopeptides incorporating a thiazepanone, isolated from Streptococcus mutans, a member of the human oral microbiome. A rapid, solid-phase peptide synthesis (SPPS) based route delivers these natural products from a cascade of cyclization reactions. This versatile process was also employed in a streamlined synthesis of mutanobactin D. Additionally, we provide an independent synthesis of a truncated mutanobactin A analog, utilizing a novel thiazepanone amino acid building block.
Topics & Concepts
Streptococcus mutansTotal synthesisCombinatorial chemistryChemistryPeptide synthesisTwo stepMicrobiomeSolid-phase synthesisTricyclicPeptideAmino acidStereochemistryBacteriaBiochemistryBiologyBioinformaticsGeneticsMicrobial Natural Products and BiosynthesisCarbohydrate Chemistry and SynthesisProbiotics and Fermented Foods