Aerobic Dimerization of Ethyl 4-Thienyl-3-ketobutanoate toward a Modifiable Photochromic Diarylethene Precursor.

A unique chemical transformation, the base-induced aerobic dimerization of ethyl 4-(2,5-dimethylthiophen-3-yl)-3-ketobutanoate leading to photochromic diarylethene with a 4-hydroxy-4-methylcyclopent-2-ene-1-one as an ethene bridge, is described. This compound is easily subjected to various chemical modifications and can be used as a new diarylethene precursor to produce photoactive compounds with desired properties and functions.

Peculiarity of changes of peripheral blood hematological indices in rats under N-stearoilethanolamine administration conditioned by combined effects of ionizing radiation and stress.

Unlabelled: Objective - to investigate the peculiarities of peripheral blood indices changes in rats under the N-stearoiletanolamine treatment before and after combined effects of ionizing radiation and stress.

Methods: hematological, statistical.

Results: Per oral administration of NSE (10,0 mg / kg) before and after the combined effects of single whole-body irradiation (6.

Combined effect of N-stearoyiletanolamine and ionizing radiation on hematological indices of peripheral blood in rats.

Unlabelled: The study objective was to explore the peculiarities of peripheral blood values in rats under the combined influence of 10.0 mg/kg N-stearoylethanolamine (NSE) and 6.0 Gy dose of ionizing radiation to identify the radiomodifying properties of the drug.