Synthesis of d-1,2-dideoxy-1,2-difluoro-myo-inositol 3,4,5,6-tetrakisphosphate and its enantiomer as analogues of myo-inositol 3,4,5,6-tetrakisphosphate
作者:Kevin R.H. Solomons、Sally Freeman、Carl H. Schwalbe、Stephen B. Shears、Deborah J. Nelson、Weiwen Xie、Karol S. Bruzik、Marcia A. Kaetzel
DOI:10.1016/s0008-6215(98)00146-3
日期:1998.6
DL-3,4,5,6-Tetra-O-benzyl-1-deoxy-1-fluoro-scyllo-inositol was resolved using (-)-(1S, 4R)-camphanyl chloride. The diastereoisomers formed were separated and the structure of D-3,4,5,6-tetra-O-benzyl-2-(1S,4R)-camphanyl-1-deoxy-1-fluoro-scyllo-inositol was solved by X-ray crystallography to an R-factor of 4.2%. A series of manipulations led to the preparation of 0-1,2-dideoxy-1,2-difluoro-myo-inositol 3,4,5,6-tetrakisphosphate and its enantiomer. The D-1,2-difluoro enantiomer stereospecifically inhibited CaMK II-activated Cl- current, but with low potency; however, efficacy of this compound was greatly enhanced by myo-inositol 3,4,5,6-tetrakisphosphate itself. (C) 1998 Elsevier Science Ltd. All rights reserved.