The novel process ##STR1## gives the end products, known as animal growth-promoters and coccidiostatics. Intermediates II are new.
这个新的工艺过程##STR1##产生的最终产品被称为动物生长促进剂和球虫抑制剂。中间体II是新的。
PROCESS FOR THE PREPARATION OF TOLTRAZURIL AND AN INTERMEDIATE USEFUL FOR ITS PREPARATION
申请人:ERREGIERRE S.p.A.
公开号:US20170291880A1
公开(公告)日:2017-10-12
Disclosed is a process for the preparation of toltrazuril of formula (I) via the intermediate N-methyl-N′-[3-methyl-4-[4-[(trifluoromethyl)thio]phenoxy]phenyl] imidodicarbonic diamide of formula (III)
wherein intermediate (III) is obtained via a novel intermediate without the use of potentially hazardous reagents or potentially unstable intermediates.