Synthesis, antioxidant and photoprotection activities of hybrid derivatives useful to prevent skin cancer

Abstract

Chronic ultraviolet (UV) radiation exposure is a major cause of skin cancer. A novel series of hybrid derivatives (I-VIII) for use in sunscreen formulations were synthesized by molecular hybridization of t-resveratrol, avobenzone, and octyl methoxycinnamate, and were characterized. The antioxidant activity values for VIII were comparable than to those of t-resveratrol. Compounds I-III and VI demonstrated Sun Protector Factor superior to that of t-resveratrol. Compounds I and IV-VIII were identified as new, broad-spectrum UVA filters while II-III were UVB filters. In conclusion, novel hybrid derivatives with antioxidant effects have emerged as novel photoprotective agents for the prevention of skin cancer.

Keywords: Antioxidant; Avobenzone; Molecular hybridization; Octyl methoxycinnamate; Photoprotection; Sunscreens; UV filters; UV radiation; t-Resveratrol.