I remember this article about GS-441524[1] cropping up a few months ago:

https://www.theatlantic.com/science/archive/2020/05/remdesiv...

There was some weird cynicism about Remdesivir being some baroque equivalent to GS-441524 (which was supposedly buried) which, if I recall correctly, supposedly enabled extra patent shenanigans.

I'm curious how these (GC373, GC376) relate.

[1] A Remdesivir-related drug sold through shady channels used to treat FIP / Feline infectious peritonitis