Efficient Chemo-Enzymatic Flow Synthesis of High Value Amides and Esters

Autor: Lucia Tamborini, Daniele Betti, Francesca Annunziata, Andrea Pinto, Martina Letizia Contente, Francesco Molinari, Cecilia Pinna
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Catalysts, Vol 10, Iss 939, p 939 (2020)
Catalysts
Volume 10
Issue 8
ISSN: 2073-4344
Popis: A flow-based chemo-enzymatic synthesis of selected APIs (i.e., butacaine, procaine and procainamide) has been developed. A bioreactor made of MsAcT, a versatile acyltransferase from Mycobacterium smegmatis, immobilised on glyoxyl&ndash
garose, was exploited to efficiently prepare amide and ester intermediates in gram scale. Immobilised MsAcT was employed in pure organic solvent, demonstrating high stability and reusability. In-line purification of the key intermediates using polymer-bound sulphonyl chloride was added after the bioreactor, enhancing the automation of the process. A final hydrogenation step using the H-Cube reactor was further carried out to obtain the selected APIs in excellent yields (>
99%), making the process fast, safe and easily handled.
Databáze: OpenAIRE