Enantioselective Formation of Amino Acids by Isomerization of Mixed Ligand Copper(ll) Schiff-Base Complexes

The formation of optically active phenylalanine from phenylpyruvic acid and pyridoxamine in the presence of various chiral CuII complexes was investigated as a function of the reaction conditions. The enantioselectivity of the reaction, as well as the pH- and ligand-dependant racemization of the product, is discussed in terms of possible reaction pathways and the most likely structure of intermediate [Cu(L)aldimine] complexes

Schistosomiasis Haematobium, Corsica, France

International audienceIn Europe, urinary schistosomiasis has previously been detected only in Portugal, where this focus disappeared during the 1950s . However, freshwater snails of the species Bulinus contortus, B. truncatus, and Planorbarius metidjensis, which are recognized intermediate hosts for Schistosoma haematobium trematodes, have been found in Portugal , Spain , and Corsica . This finding suggested that autochthonous schistosomiasis could re-emerge in southern Europe if these mollusks become infected. We report a probable focus for transmission of schistosomiasis haematobium in Corsica, France