第 41 卷第 1 期Vol. 41 No. 1
2011 年 2 月Feb 2011

所属栏目:农药及中间体

地克珠利杂质三嗪酸乙酯的研究
曹 炜,郭 磊,王 霞,邱家军,侯仲轲 (浙江国邦药业有限公司,浙江 上虞,312369)
摘 要:对地克珠利中未知杂质2-[3,5-二氯-4-[(RS)-(4-氯苯)氰甲基]苯基]-3,5-二氧-2,3,4,5-四氢-1,2,4-三嗪-6-羧酸乙酯(简称三嗪酸乙酯)进行了定向合成,并用质谱、元素分析、红外、紫外及核磁共振对其进行结构确证。确认了该杂质是由中间体三嗪酸在酸催化下与残留的乙醇反应生成。对提高地克珠利的质量具有重要意义。
关键词:地克珠利;杂质;三嗪酸乙酯;合成;结构确证
中图分类号:S482.3  文献标识码:A  文章编号:1009-9212(2011)01-0020-04
Synthesis and Elucidation of Structure for Ethyl Triazine Carboxylate
CAO Wei,GUO Lei,WANG Xia,QIU Jia-jun,HOU Zhong-ke (Zhejiang Guobang Pharmaceutical Co.,Ltd,Shangyu 312369,China)
Abstract:A unspecified impurity in diclazutil,ethyl 2-[3,5-dichloro-4-[(RS)-(4-chlorophenyl)cyanomethy]phenyl]-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carboxylate was synthesized,and its structure was elucidated with MS,elememt analysis,IR,UV and NMR. Results confirmed that the impurity was produced from the reaction of triazine carboxylic acid and ethanol under catalysis of acid. This study is significant for improving diclazuril quality and decreasing impurity in diclazuril.
Key words:diclazuril;impurity;ethyl triazine carboxylate;synthesis,elucidation of structure
作者简介:曹 炜(1973-),男,浙江嵊州人,工程师,硕士,主要从事药物分析及质量保证工作。(E-mail:c7372@sohu.com)
收稿日期:2011-02-09