Process for the preparation of optically Active cyclic depsipeptides, annular, with 24 Atoms containing phenyl lactic acid and lactic acid, using fungal strains of the species and other xilariaceos Rosellinia

摘要

The invention refers to a preparation procedure of 24 optically active ring cutting agents containing lactate and phenyllactate, which are separated by using natural chemical strains such as rosellinia spp and other West polar tubes separated from fruit bodies of sex substitutes. Rosellinia and coniolarilla (xilariquis) grow on the living wood of the dead wood, the dead leaf tree and the coniferous tree, and the enzyme preparations isolated from these natural strains. Pf12a with general (L) formula is very suitable for internal parasites,Especially in the field of medicine and veterinary science.