Remdesivir impurity

Remdesivir nucleoside monophosphate is a metabolite of Remdesivir[1]. Remdesivir is a nucleoside analogue with effective antiviral activity against SARS-CoV and MERS-CoV[2].

ChEBI: GS-441524 monophosphate is a C-nucleoside phosphate that is GS-441524 in which the 5'-hydroxy group has been replaced by a phosphate group. In cells, GS-441524 monophosphate gets converted into the pharmacologically active triphosphate form (GS-443902). It has a role as an anticoronaviral agent, an antiviral drug and a drug metabolite. It is a C-nucleoside phosphate, an aromatic amine, a nitrile and a pyrrolotriazine. It is functionally related to a GS-441524.

[1] Byoung Kwon Chun, et al. or treating filoviridae virus infections. US20160122374.
[2] Agostini ML, et al. Coronavirus Susceptibility to the Antiviral Remdesivir (GS-5734) Is Mediated by the Viral Polymerase and the Proofreading Exoribonuclease. MBio. 2018 Mar 6;9(2). pii: e00221-18. DOI:10.1128/mBio.00221-18