Biosynthese der Cytochalasane. Teil II Die Grundbausteine von Cytochalasin D

Abstract
A number of potential 14C‐ and 3H‐labelled precursors were fed to growing cultures of Zygosporium masonii after the rate of formation of cytochalasin D had been measured. By chemical degradation of [14C]‐ and [3H, 14C]‐cytochalasin D the distribution of the radioactivity originating from incorporated [4′‐3H, U‐14C]‐L‐phenylalanine and [CH314C]‐L‐methionine was determinated. The results demonstrate that the building blocks of cytochalasin D are 1 unit of pheylalanine, 3 units of methionine and acetate units.