A Arachnia sp.P163 producing alcohol dehydrogenase which is able to reduce aminoacetophenone to R\|1\|phenyl\|2\|aminoethanol was obtained from soil and cultures.The maximum activity of enzyme was produced by the LB m...A Arachnia sp.P163 producing alcohol dehydrogenase which is able to reduce aminoacetophenone to R\|1\|phenyl\|2\|aminoethanol was obtained from soil and cultures.The maximum activity of enzyme was produced by the LB medium containing 1% sodium citrate and peptone,0 1% phenylaminoethanol as inducer at 30℃ for 48 hs.展开更多
The crystal structure of the title compound carvedilol, C24H25N2O4(Mr= 406. 47), has determined by single-crystal X-ray diffraction. The crystal is mono-clinic with space group P21/c, a=9. 094(l), b= l2. 754(1), c= 18...The crystal structure of the title compound carvedilol, C24H25N2O4(Mr= 406. 47), has determined by single-crystal X-ray diffraction. The crystal is mono-clinic with space group P21/c, a=9. 094(l), b= l2. 754(1), c= 18. 330(2) A, β=97. 36(1 )°, V= 2l08. 5(4) A 3, Z= 4, D.= l. 280 g/cm3, F(000) = 864, μ=O. O88mm-1 and final R= O. O368, wR(F2) = 0.0787 for reflections (I>2σ(I) ). X-ray anal-ysis reveals that the crystal is composed of a pair of enantiomer, and there are hydrogenbonds O(3) -H(3O) -N(l ) between the two enantimers. There are two planes in themolecule.展开更多
文摘A Arachnia sp.P163 producing alcohol dehydrogenase which is able to reduce aminoacetophenone to R\|1\|phenyl\|2\|aminoethanol was obtained from soil and cultures.The maximum activity of enzyme was produced by the LB medium containing 1% sodium citrate and peptone,0 1% phenylaminoethanol as inducer at 30℃ for 48 hs.
文摘The crystal structure of the title compound carvedilol, C24H25N2O4(Mr= 406. 47), has determined by single-crystal X-ray diffraction. The crystal is mono-clinic with space group P21/c, a=9. 094(l), b= l2. 754(1), c= 18. 330(2) A, β=97. 36(1 )°, V= 2l08. 5(4) A 3, Z= 4, D.= l. 280 g/cm3, F(000) = 864, μ=O. O88mm-1 and final R= O. O368, wR(F2) = 0.0787 for reflections (I>2σ(I) ). X-ray anal-ysis reveals that the crystal is composed of a pair of enantiomer, and there are hydrogenbonds O(3) -H(3O) -N(l ) between the two enantimers. There are two planes in themolecule.
