Hyaluronic acid (HA) is an anionic nonsulfated glycosaminoglycan distributed widely throughout connective epithelial and neural tissues. It is unique among glycosaminoglycans in that it is nonsulfated forms in the plasma membrane instead of the Golgi and can be very large with its molecular weight often reaching the millions.

Trofinetide (NNZ 2566 ) is a peptidomimetic tripeptide Gly-Pro-Glu that has anti-inflammatory and neuroprotective properties against hypoxic-ischemic brain injury and neurodegeneration.

iron chloride hexahydrate promoted selective hydroxylation and chlorination of benzyl ketone derivatives for the construction of hetero-quaternary scaffolds.