[EN] SULFONAMIDE OR AMIDE COMPOUNDS, COMPOSITIONS AND METHODS FOR THE PROPHYLAXIS AND/OR TREATMENT OF AUTOIMMUNE, INFLAMMATION OR INFECTION RELATED DISORDERS [FR] COMPOSÉS DE SULFONAMIDE OU D'AMIDE, COMPOSITIONS ET PROCÉDÉS POUR LA PROPHYLAXIE ET/OU LE TRAITEMENT DE TROUBLES AUTO-IMMUNS, D'INFLAMMATION OU D'INFECTION
Radicinin is a phytotoxic and antibiotic metabolite produced by some phytopathogenic fungi. Precursor administration and cell-free experiments with deoxyradicinin and radicinin were carried out in Bipolaris colds H13-3. When deoxyradicinin was administered to the fungus, radicinin and 3-epi-radicinin formed. When radicinin administered, 3-epi-radicinin was formed. Their formation was confirmed by cell-free experiments. Deoxyradicinin 3-monooxygenase which catalyzes conversion of deoxyradicinin to radicinin showed the best activity at 35 degrees C and pH 7.0, and required NAD(+) as co-enzyme. Its molecular weight was determined to be 130-184 kDa. Radicinin epimerase catalyzing the reaction of radicinin to 3-epi-radicinin was purified from a cell-free extract. Radicinin epimerase is a homodimer of a 28 kDa subunit, and its highest activity was achieved at 30-35 degrees C and pH 7.0-9.0. (C) 2011 Elsevier Ltd. All rights reserved.
Selective dehydrofluorination in the thermolysis of gem-fluorochlorocyclopropanes in the presence of aluminum oxide
作者:N. V. Volchkov、M. B. Lipkind、A. V. Zabolotskikh、O. M. Nefedov