PROCESS FOR THE PREPARATION OF A MACROCYCLIC COMPOUND

摘要

Process for the preparation of a macrocyclic compound Macrocyclic compounds of formula I <IMG> (I) wherein either R is methyl and a double bond is in 9,10-positions or wherein R is hydrogen and a single bond is in 9,10-position, can be prepared microbiologically by culturing Sorangium cellulosum "So ce 26" (NCIB 12 411). These compounds are pesticides for controlling plant diseases and can be applied in conventional formulations.