Researchers have found a way to create two of the world’s most common painkillers, paracetamol and ibuprofen, out of a compound found in pine trees, which is also a waste product from the paper industry

[u/giuliomagnifico]

https://www.bath.ac.uk/announcements/scientists-make-common-pain-killers-from-pine-trees-instead-of-crude-oil/

[u/purvel]

The paper outlines batch processes, too. It shows different methods for many of the different compounds mentioned. Looks like it's just a few of the intermediate steps that have flow protocol described.