Matthew Badland, Maria S. Brown, Nessa Carson, Douglas J. Critcher, Steven J. Fussell, Michael Hawksworth, Heather Ingram, Rebecca A. Johnson, Rajesh Kumar, Jinu S. Mathew, Laura McGivern, Philip Peach, Ben Pibworth, Alexandru I. Pop, Emily K. Rose, Nathan J. Rutland, Adam Scott, Steven J. R. Twiddle
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引用次数: 0
Abstract
The compound (S)-oxetan-2-ylmethyl tosylate 1 was identified as a key synthetic fragment for the introduction of the 2-substituted oxetane functionality in potential drug candidates under development in our laboratories. The focus of this paper is to highlight methodologies evaluated in our quest for synthetic routes to 2-substituted oxetanes suitable for enabling manufacture. Of the five routes investigated, three (Route 1A, Route 2, and Route 3) were successfully demonstrated in the laboratory. Subsequently, Route 3 was executed at scale to deliver metric ton quantities of the oxetane tosylate 1 as a solution in EtOAc, which was integrated into the synthesis of 2 and aforementioned drug candidates.
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.
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