Abietic acid deriv. prepn. - obtd. from colophonium, abietic acid or dehydro-abietic

摘要

The cpds. of formula (I) with high anti-microbial activity relative to known cpds, for use in wide-spectrum fungicides, are obtained by a new process from colophonium, abietic acid, dehydro-abietic acid, or salts or esters of these.