title: Efficient generation of a trisporoid library by combination of synthesis and biotransformation.
abstract: Trisporic acids and their biosynthetic precursors represent a family of powerful fungal pheromones and morphogenetic factors. A highly flexible synthetic protocol is described that (i) provides rapid access to nonfunctionalized early trisporoids from beta-ionone, (ii) includes a regiospecific oxidative functionalization of beta-ionone leading to 1-acetoxy-beta-ionone giving access to functionalized trisporoids, and (iii) utilizes a biotransformation of early synthetic trisporoids by growing cells of Blakeslea trispora to prepare late trisporoids including trisporic acids. The same protocol also provides deuterium-labeled trisporoids such as trisporin B [2H3]-19. Administration of [2H3]-19 to growing cells of the (-)-mating type of B. trispora resulted in the formation of the labeled trisporols [2H3]-20 and [2H3]-21. Growing cultures containing both mating types can be used to prepare trisporic acids from early precursors.
authors.affiliation: Department of Bioorganic Chemistry, Max-Planck-Institute for Chemical Ecology, Hans-Knöll-Strasse 8, D-07745 Jena, Germany.
authors.forename: Doreen
authors.initials: D
authors.lastname: Schachtschabel
authors.forename: Wilhelm
authors.initials: W
authors.lastname: Boland
mesh_terms: D001711:Biotransformation; D005231:Fatty Acids, Unsaturated / Q000138:chemical synthesis* / Q000737:chemistry / Q000378:metabolism*; D005658:Fungi / Q000378:metabolism*; D015394:Molecular Structure
chemical_list: D005231:Fatty Acids, Unsaturated; C004574:trisporic acid