More efficient synthetic methods:A roadmap for sustainable pharmaceutical manufacturing

Abstract: The development of new strategies for assembling drug molecules is essential to minimize time, waste, and energy consumption in pharmaceutical manufacturing. The initial selection of the synthetic route and methodologies for assembling an Active Pharmaceutical Ingredient (API) plays a pivotal role in the overall sustainability of the manufacturing process. Traditionally, the synthesis of small molecule APIs depends on a relatively narrow range of reaction types and solution-phase chemistry. In contrast, platform synthetic methods used for producing peptides, oligonucleotides, monoclonal antibodies, and other recombinant proteins tend to be resource- and energy-intensive. This inherent material and energy demand presents a significant challenge to improving the sustainability of pharmaceutical manufacturing across various API modalities. To address these challenges, it is critical to develop additional synthetic technologies that can be applied to different types of APIs. These technologies should reduce waste, lower energy consumption, and minimize the use of hazardous substances, while also leveraging the advantages of innovative manufacturing techniques.