Eugene Chong, Ruoshi Li, Weitong Dong, Maxim Chevliakov, Thomas G. Tampone, Yongda Zhang, Bo Qu, Nizar Haddad, Jon C. Lorenz, Max Sarvestani, Thuraya Omar, Huayu Li, Joe J. Gao, Donghong A. Gao, Scott Pennino, Ling Wu, Earl Spinelli, Steven Yao, Heewon Lee, Frederic Buono, Jinhua J. Song, Birgit Wilding
{"title":"Enabling the First Scale-Up of the Selective HER2 Inhibitor BI-4142","authors":"Eugene Chong, Ruoshi Li, Weitong Dong, Maxim Chevliakov, Thomas G. Tampone, Yongda Zhang, Bo Qu, Nizar Haddad, Jon C. Lorenz, Max Sarvestani, Thuraya Omar, Huayu Li, Joe J. Gao, Donghong A. Gao, Scott Pennino, Ling Wu, Earl Spinelli, Steven Yao, Heewon Lee, Frederic Buono, Jinhua J. Song, Birgit Wilding","doi":"10.1021/acs.oprd.5c00127","DOIUrl":null,"url":null,"abstract":"The enabling synthesis of the first route to HER2 inhibitor <b>BI-4142</b> (<b>1</b>) to deliver a drug substance in kilogram quantity is reported. The synthetic route involves (1) a fit-for-purpose synthesis of pyrimido[5,4-<i>d</i>]pyrimidine <b>2</b>; (2) a high yielding, scalable synthesis of aniline <b>3</b>; (3) a safer sodium tungstate-catalyzed sulfide oxidation; (4) S<sub>N</sub>Ar reactions to form C–N bonds; and (5) amidation via Schotten–Baumann conditions. With the speed of delivery prioritized, a purification protocol using silica gel filtration and crystallizations was developed in time to control the quality of API. The overall yield of the delivery route was improved from 22% to 46% over a prior route starting from <b>2</b>.","PeriodicalId":55,"journal":{"name":"Organic Process Research & Development","volume":"11 1","pages":""},"PeriodicalIF":3.1000,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Organic Process Research & Development","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acs.oprd.5c00127","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
The enabling synthesis of the first route to HER2 inhibitor BI-4142 (1) to deliver a drug substance in kilogram quantity is reported. The synthetic route involves (1) a fit-for-purpose synthesis of pyrimido[5,4-d]pyrimidine 2; (2) a high yielding, scalable synthesis of aniline 3; (3) a safer sodium tungstate-catalyzed sulfide oxidation; (4) SNAr reactions to form C–N bonds; and (5) amidation via Schotten–Baumann conditions. With the speed of delivery prioritized, a purification protocol using silica gel filtration and crystallizations was developed in time to control the quality of API. The overall yield of the delivery route was improved from 22% to 46% over a prior route starting from 2.
期刊介绍:
The journal Organic Process Research & Development serves as a communication tool between industrial chemists and chemists working in universities and research institutes. As such, it reports original work from the broad field of industrial process chemistry but also presents academic results that are relevant, or potentially relevant, to industrial applications. Process chemistry is the science that enables the safe, environmentally benign and ultimately economical manufacturing of organic compounds that are required in larger amounts to help address the needs of society. Consequently, the Journal encompasses every aspect of organic chemistry, including all aspects of catalysis, synthetic methodology development and synthetic strategy exploration, but also includes aspects from analytical and solid-state chemistry and chemical engineering, such as work-up tools,process safety, or flow-chemistry. The goal of development and optimization of chemical reactions and processes is their transfer to a larger scale; original work describing such studies and the actual implementation on scale is highly relevant to the journal. However, studies on new developments from either industry, research institutes or academia that have not yet been demonstrated on scale, but where an industrial utility can be expected and where the study has addressed important prerequisites for a scale-up and has given confidence into the reliability and practicality of the chemistry, also serve the mission of OPR&D as a communication tool between the different contributors to the field.