Previous SAR studies on pentapeptides showed that at least three functional groups on the peptide side - chains are required: an aromatic ring (such as 2 - naphthyl - or 3 - indolyl group), one or two guanidino groups, and
a phenol group.
Not exact matches
Gutsche's team used the so - called Mannich reaction to add aminomethyl
groups to each of the calixarene's
phenols.
The hydroxy (OH)
groups on the
phenols point downwards, forming the base of the molecule, while the benzene rings form the wall of the vase.
The research
group «Food Colour and Quality», which is part of the Faculty of Pharmacy at the University of Seville, has published two scientific articles in which the reason that different quantities of
phenols can be extracted from the solid parts of the grape during winemaking.
One of the latest click chemistry reactions developed by Sharpless»
group was Sulfur (VI) Fluoride Exchange (SuFEx), which transforms any
phenol chemical
group into a fluorosulfate.
Staphylococcus epidermidis, a major commensal bacterium, produces
phenol - soluble modulins that inhibit pathogens such as S. aureus and
Group A Streptococcus.
This task is accomplished by two
groups of antioxidants: The first
group includes vitamins A, C and E, beta ‐ carotene, selenium, the bioflavanoids, and
groups of phytonutrients such as
phenols.