488-54-0Relevant articles and documents
A short, stereoselective synthesis of neo-inositol
Hudlicky, Tomas,Restrepo-Sanchez, Nora,Kary, Pierre D.,Jaramillo-Gomez, Luz M.
, p. 200 - 203 (2000)
A practical synthesis of neo-inositol is described in which the target is prepared on a multigram scale in six operations from bromobenzene. Copyright (C) 2000 Elsevier Science Ltd.
A short and efficient route from myo - To neo -inositol
Wessig, Pablo,M?llnitz, Kristian,Hübner, Sebastian
scheme or table, p. 1497 - 1500 (2010/09/05)
An efficient route from myo- to neo-inositol is described. The key steps of the sequence are oxidation of the hydroxy group at C-5 to the corresponding ketone, followed by a highly (dr = 7.8:1) stereoselective reduction. The route includes nine steps with an overall yield of 51% and is therefore superior to all hitherto reported methods for the preparation of neo-inositol. Georg Thieme Verlag Stuttgart New York.
Stereo- and regiospecificity of yeast phytases-chemical synthesis and enzymatic conversion of the substrate analogues neo- and L-chiro-inositol hexakisphosphate
Adelt, Stephan,Podeschwa, Michael,Dallmann, Guido,Altenbach, Hans-Josef,Vogel, Guenter
, p. 44 - 67 (2007/10/03)
Phytases are enzymes that catalyze the hydrolysis of phosphate esters in myo-inositol hexakisphosphate (phytic acid). The precise routes of enzymatic dephosphorylation by phytases of the yeast strains Saccharomyces cerevisiae and Pichia rhodanensis have been investigated up to the myo-inositol trisphosphate level, including the absolute configuration of the intermediates. Stereoselective assignment of the myo-inositol pentakisphosphates (D-myo-inositol 1,2,4,5,6-pentakisphosphate and D-myo-inositol 1,2,3,4,5-pentakisphosphate) generated was accomplished by a new method based on enantiospecific enzymatic conversion and HPLC analysis. Via conduritol B or E derivatives the total syntheses of two epimers of myo-inositol hexakisphosphate, neo-inositol hexakisphosphate and L-chiro-inositol hexakisphosphate were performed to examine the specificity of the yeast phytases with these substrate analogues. A comparison of kinetic data and the degradation pathways determined gave the first hints about the molecular recognition of inositol hexakisphosphates by the enzymes. Exploitation of the high stereo- and regiospecificity observed in the dephosphorylation of neo- and L-chiro-inositol hexakisphosphate made it possible to establish enzyme-assisted steps for the synthesis of D-neo-inositol 1,2,5,6-tetrakisphosphate, L-chiro-inositol 1,2,3,5,6-pentakisphosphate and L-chiro-inositol 1,2,3,6-tetrakisphosphate.