Effect of UV Radiation and Temperature on Radical Scavenging Activity of L. and L. Fruit Extracts.

New active ingredients, including those of plant origin, which could protect the skin against various harmful factors, such as UV radiation and free radicals responsible for skin ageing, are still being sought. The present study was focused on the antioxidant activity of L. and L.

Search for new non-nucleoside inhibitors of HIV-1 reverse transcriptase (HIV-1 RT).

The derivatives of dibenzoxazocinone, dibenzoxadiazocine, dibenzoxadiazonine, and benzodiazepine systems were synthesized as potential lead compounds for inhibitors of HIV-1 reverse transcriptase. The suggested structures were derived from analysis of the described spatial and physicochemical requirements for HIV-1 RT inhibitors. All of the evaluated compounds (apart from the oxadiazocine derivatives) showed a week inhibitory activity on recombinant HIV-1 RT from Escherichia coli.