... European Journal of Medicinal Chemistry. ... Unfortunately, only few of the reported compounds are used in medicinal and cosmetic products because of their lower activities or serious side effects. ... s, NH 2 ), 6.44 (1H, br s, NH 2 ), 2.39 (2H, t, J = 6.6 Hz, CH 2 ), 2.31 (2H, t, J = 6.6 Hz ...