Toward a Practical, Nonenzymatic Process for Investigational COVID-19 Antiviral Molnupiravir from Cytidine: Supply-Centered Synthesis

Toward a Practical, Nonenzymatic Process for Investigational COVID-19 Antiviral Molnupiravir from Cytidine: Supply-Centered Synthesis

A scalable four-step synthesis of molnupiravir from cytidine is described herein. The attractiveness of this approach is its fully chemical nature involving inexpensive reagents and more environmentally friendly solvents such as water, isopropanol, acetonitrile, and acetone. Isolation and purificati...

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Bibliographic Details
Main Authors: Gopalsamuthiram, Vijayagopal, Kadam, Appasaheb L, Noble, Jeffrey K, Snead, David R, Williams, Corshai, Jamison, Timothy F, Senanayake, Chris, Yadaw, Ajay K, Roy, Sarabindu, Sirasani, Gopal, Gupton, B Frank, Burns, Justina, Cook, Daniel W, Stringham, Rodger W, Ahmad, Saeed, Krack, Rudy
Other Authors: Massachusetts Institute of Technology. Department of Chemistry
Format: Article
Language:English
Published: American Chemical Society (ACS) 2022
Online Access:https://hdl.handle.net/1721.1/141084
Description
Summary:A scalable four-step synthesis of molnupiravir from cytidine is described herein. The attractiveness of this approach is its fully chemical nature involving inexpensive reagents and more environmentally friendly solvents such as water, isopropanol, acetonitrile, and acetone. Isolation and purification procedures are improved in comparison to our earlier study as all intermediates can be isolated via recrystallization. The key steps in the synthesis, namely, ester formation, hydroxyamination, and deprotection were carried out on a multigram scale to afford molnupiravir in 36-41% yield with an average purity of 98 wt % by qNMR and 99 area% by HPLC.

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