Identification, synthesis and photo-protection evaluation of arylthiazole derivatives as a novel series of sunscreens

A novel series of arylthiazole derivatives have been designed, synthesized and evaluated in preventing keratinocytes cell (HaCaT) from UVB exposure induced cellar damage. The structure-activity relationship (SAR) was discussed. More importantly, compound 5a significantly protected the dorsal skin of BALB/c-nu mice against UVB-induced decrustation in vivo. The in vitro and in vivo data for these arylthiazole derivatives suggest further studies for their potential use as photo-protection agents as well as sunscreen candidates.