Process Development and Synthesis of Process-Related Impurities of an Efficient Scale-Up Preparation of 5,2′-Dibromo-2,4′,5′-Trihydroxy Diphenylmethanone as a New Acute Pyelonephritis Candidate Drug
作者:Xiu E Feng、Ke Meng Cui、Qing Shan Li、Zi Cheng Wu、Fei Lei
DOI:10.3390/molecules25030468
日期:——
(LM49-API), a new acute pyelonephritis candidate drug, was developed and validated aiming to reduce by-products and achieve better impurity profiles. Meanwhile, the polymorph of LM49-API and process-related impurities were also investigated. Ultimately, the optimal reaction conditions were verified by evaluating the impurity profiles and their formation during the synthesis. Six process-related impurities
基于上述克级实验室工艺,开发了急性肾盂肾炎新候选药物5,2'-二溴-2,4',5'-三羟基二苯甲酮(LM49-API)的高效放大制备工艺,并进行了生产。经验证旨在减少副产物并获得更好的杂质分布。同时,还对LM49-API的多晶型和工艺相关杂质进行了研究。最终,通过评估合成过程中的杂质分布及其形成来验证最佳反应条件。合成并鉴定了六种与工艺相关的杂质,可用于 LM49-API 的质量控制。其最终的制备工艺在329-410 g放大生产中得到了进一步验证,总产率为53.4-57.1%,高效液相色谱(HPLC)纯度为99.95-99.98%,目前可用于商业生产。经鉴定,LM49-API中主要单一杂质为LM49-API-imC和LM49-API-imX,含量控制在0.03%以下。