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Due to the outbreak global supplies will be disrupted also there are people that take it as prescription medicine for arthritis, its relevant people to have access to the synthesis of it. Here is a paper describing cost effective way to synthesis it [1].Its not trivial task but good information to have access to. Had a quick look at the precursor chemicals used in this synthesis they are sold from global chemical suppliers and doesn't seem to have any specific restriction for sell.

[1] https://www.beilstein-journals.org/bjoc/articles/14/45