{"title":"肉豆蔻基-γ-氯化吡啶(MGPC)的高p,T,c连续流合成研究--一种药物配方中的防腐剂","authors":"Karuna Veeramani, Manish Shinde, Vishnuvardhana Vema Reddy Eda, Swamy Peraka, Saranya Mohan, Rakeshwar Bandichhor, Srinivas Oruganti","doi":"10.1007/s41981-024-00309-0","DOIUrl":null,"url":null,"abstract":"<div><p>Myristyl-<i>γ</i>-picolinium chloride (MGPC) is an alkyl pyridine quaternary ammonium salt and a popular preservative in injectables such as Depo-Medrol (Methylprednisolone acetate). Herein we describe a successful high-<i>p</i>,<i>T</i>,<i>c</i> chemical intensification of MGPC synthesis from neat myristyl chloride and <i>γ</i>-picoline in continuous flow. The process is atom economical, scalable with low reactor footprint and under optimized conditions, consistently affords MGPC in 45 min (instead of 8–12 h reported in literature for a conventional batch process) with excellent yield (> 90%) and purity (> 99%).</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":630,"journal":{"name":"Journal of Flow Chemistry","volume":"14 2","pages":"481 - 489"},"PeriodicalIF":2.0000,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Investigation into a high-p,T,c continuous flow synthesis of myristyl-γ-picolinium chloride (MGPC) – a preservative in pharmaceutical formulations\",\"authors\":\"Karuna Veeramani, Manish Shinde, Vishnuvardhana Vema Reddy Eda, Swamy Peraka, Saranya Mohan, Rakeshwar Bandichhor, Srinivas Oruganti\",\"doi\":\"10.1007/s41981-024-00309-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Myristyl-<i>γ</i>-picolinium chloride (MGPC) is an alkyl pyridine quaternary ammonium salt and a popular preservative in injectables such as Depo-Medrol (Methylprednisolone acetate). Herein we describe a successful high-<i>p</i>,<i>T</i>,<i>c</i> chemical intensification of MGPC synthesis from neat myristyl chloride and <i>γ</i>-picoline in continuous flow. The process is atom economical, scalable with low reactor footprint and under optimized conditions, consistently affords MGPC in 45 min (instead of 8–12 h reported in literature for a conventional batch process) with excellent yield (> 90%) and purity (> 99%).</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":630,\"journal\":{\"name\":\"Journal of Flow Chemistry\",\"volume\":\"14 2\",\"pages\":\"481 - 489\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2024-01-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Flow Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s41981-024-00309-0\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Flow Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s41981-024-00309-0","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Investigation into a high-p,T,c continuous flow synthesis of myristyl-γ-picolinium chloride (MGPC) – a preservative in pharmaceutical formulations
Myristyl-γ-picolinium chloride (MGPC) is an alkyl pyridine quaternary ammonium salt and a popular preservative in injectables such as Depo-Medrol (Methylprednisolone acetate). Herein we describe a successful high-p,T,c chemical intensification of MGPC synthesis from neat myristyl chloride and γ-picoline in continuous flow. The process is atom economical, scalable with low reactor footprint and under optimized conditions, consistently affords MGPC in 45 min (instead of 8–12 h reported in literature for a conventional batch process) with excellent yield (> 90%) and purity (> 99%).
期刊介绍：
The main focus of the journal is flow chemistry in inorganic, organic, analytical and process chemistry in the academic research as well as in applied research and development in the pharmaceutical, agrochemical, fine-chemical, petro- chemical, fragrance industry.
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