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Streamlined Chemo-Enzymatic Synthesis of Molnupiravir via Lipase Catalyst.

ABSTRACT: An enzymatic approach for the synthesis of Molnupiravir has been developed using immobilized lipase as a biocatalyst. This method involves a concise process of the regioselective esterification of uridine with isobutyric anhydride using Lipase (Addzyme-011). This efficient route gets 97% conversion of uridine 3, with an overall 73% yield of molnupiravir 1 in two steps. The use of inexpensive and easily available lipase makes the synthesis cost-effective and accessible globally, promoting the principles of green chemistry.

SUBMITTER: Rosangzuala K

PROVIDER: S-EPMC10831972 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature

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Streamlined Chemo-Enzymatic Synthesis of Molnupiravir via Lipase Catalyst.

Rosangzuala Khawlhring K Patlolla Ravinder Reddy RR Shaikh Asif A Naik Kethavath Anjali Priya KAP Raveena Gajjala G Nemali Manjula M Reddy Mudiam Mohana Krishna MK Banoth Linga L

ACS omega 20240117 4

An enzymatic approach for the synthesis of Molnupiravir has been developed using immobilized lipase as a biocatalyst. This method involves a concise process of the regioselective esterification of uridine with isobutyric anhydride using Lipase (Addzyme-011). This efficient route gets 97% conversion of uridine <b>3</b>, with an overall 73% yield of molnupiravir <b>1</b> in two steps. The use of inexpensive and easily available lipase makes the synthesis cost-effective and accessible globally, pro ...[more]

PMID: 38313533

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Project description:Propenylbenzenes, including isosafrole, anethole, isoeugenol, and their derivatives, are natural compounds found in essential oils from various plants. Compounds of this group are important and valuable, and are used in the flavour and fragrance industries as well as the pharmaceutical and cosmetic industries. The aim of this study was to develop an efficient process for synthesising oxygenated derivatives of these compounds and evaluate their potential biological activities. In this paper, we propose a two-step chemo-enzymatic method. The first step involves the synthesis of corresponding diols 1b-5b from propenylbenzenes 1a-5avia lipase catalysed epoxidation followed by epoxide hydrolysis. The second step involves the microbial oxidation of a diasteroisomeric mixture of diols 1b-5b to yield the corresponding hydroxy ketones 1c-4c, which in this study was performed on a preparative scale using Dietzia sp. DSM44016, Rhodococcus erythropolis DSM44534, R. erythropolis PCM2150, and Rhodococcus ruber PCM2166. Application of scaled-up processes allowed to obtain hydroxy ketones 1-4c with the following yield range 36-62.5%. The propenylbenzene derivatives thus obtained and the starting compounds were tested for various biological activities, including antimicrobial, antioxidant, haemolytic, and anticancer activities, and their impact on membrane fluidity. Fungistatic activity assay against selected strains of Candida albicans results in MIC50 value varied from 37 to 124 μg/mL for compounds 1a, 3a-c, 4a,b, and 5a,b. The highest antiradical activity was shown by propenylbenzenes 1-5a with a double bond in their structure with EC50 value ranged from 19 to 31 μg/mL. Haemolytic activity assay showed no cytotoxicity of the tested compounds on human RBCs whereas, compounds 2b-4b and 2c-4c affected the fluidity of the RBCs membrane. The tested compounds depending on their concentration showed different antiproliferative activity against HepG2, Caco-2, and MG63. The results indicate the potential utility of these compounds as fungistatics, antioxidants, and proliferation inhibitors of selected cell lines.

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Streamlined Chemo-Enzymatic Synthesis of Molnupiravir via Lipase Catalyst.

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Streamlined Chemo-Enzymatic Synthesis of Molnupiravir via Lipase Catalyst.

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