l-carnitine and diabetes The Role of in Kidney Disease Related Metabolic Dysfunctions Muscle-Specific Deletion of Carnitine Acetyltransferase
Description
Structural and biophysical studies using NMR and small-angle X-ray scattering have demonstrated that GSH directly participates in Fe-S cluster assembly, including formation of mitochondrial Fe-S biosynthetic complexes essential for respiratory chain function 204,205

Pharmacological therapy of cancer anorexia-cachexia

3-O-acetylrubianol C (3AR-C) induces RIPK1-dependent programmed cell death by selective inhibition of IKKbeta
Vitamin C's antioxidant properties help fight free radicals and UV damage
Afonso, M

As I believe you stated, this is a naturally occuring compound.canNOT be patented = no financial incentive to drug companies