Healy, Alan R.; Wernke, Kevin M.; Kim, Chung Sub; Lees, Nicholas R.; Crawford, Jason M.; Herzon, Seth B. published the artcile< Synthesis and reactivity of precolibactin 886>, COA of Formula: C12H18N2O4S, the main research area is synthesis precolibactin 886 nucleophilic cleavage.
The clb gene cluster encodes the biosynthesis of metabolites known as precolibactins and colibactins. The clb pathway is found in gut commensal Escherichia coli, and clb metabolites are thought to initiate colorectal cancer via DNA crosslinking. Here we report confirmation of the structural assignment of the complex clb product precolibactin 886 via a biomimetic synthetic pathway. We show that an α-ketoimine linear precursor undergoes spontaneous cyclization to precolibactin 886 on HPLC purification Studies of this α-ketoimine and the related α-dicarbonyl revealed that these compounds are unexpectedly susceptible to nucleophilic cleavage under mildly basic conditions. This cleavage pathway forms other known clb metabolites or biosynthetic intermediates and explains the difficulties in isolating fully mature biosynthetic products. This cleavage also accounts for a recently identified colibactin-adenine adduct. The colibactin peptidase ClbP deacylates synthetic precolibactin 886 to form a non-genotoxic pyridone, which suggests precolibactin 886 lies off the path of the major biosynthetic route.
Nature Chemistry published new progress about Biomimetic synthesis. 96929-05-4 belongs to class thiazole, and the molecular formula is C12H18N2O4S, COA of Formula: C12H18N2O4S.
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica