Formula (1) react epoxide with cyanic acid under existing of production mannered null harohidorindeharogenaze of the optical active

摘要

It depends on the fact that formula (1) reacts epoxide with cyanic acid under existing of harohidorindeharogenaze, formula (2a) or (2b) production method of okisazorijinon which enriched is done optically. Selective figure It is not