(Epi)gallocatechin gallate (13) and its analogues have been reported as proteasome inhibitors [75], preventers of degenerative brain diseases [76], antibacterial [77], antiviral, antifungal [78], part of cancer treatments [79,80] and modulators of cyclooxygenase-2, oxidative stress and inflammation of different cellular processes [80]. Here, PTGS2 is linked to cancer.