Synthesis of Photoactivatable 1,2-<i>O-</i>Diacyl-<i>sn-</i>glycerol Derivatives of 1-<scp>l</scp>-Phosphatidyl-<scp>d</scp>-<i>myo</i>-inositol 4,5-Bisphosphate (PtdInsP<sub>2</sub>) and 3,4,5-Trisphosphate (PtdInsP<sub>3</sub>)
作者:Jian Chen、Adam A. Profit、Glenn D. Prestwich
DOI:10.1021/jo960895r
日期:1996.1.1
Photoactivatable analogues of 1-L-phosphatidyl-D-myo-inositol 4,5-bisphosphate (PtdIns(4,5)P-2 or PtdInsP(2)) and the corresponding 3,4,5-trisphosphate (PtdIns(3,4,5)P-3 or PtdInsP(3)) were prepared from the two chiral precursors, methyl a-D-glucopyranoside and 1,2-isopropylidene-sn-glycerol. Two key synthetic transformations included the Ferrier rearrangement reaction to construct the optically-pure inositol skeleton and the sequential acylation of the primary and secondary hydroxyl groups on the glycerol derivatives. The sn-1-O-(6-aminohexanoyl) PtdInsP(2) and PtdInsP(3) derivatives were further modified to contain benzophenone photophores in unlabeled and high specific activity tritium-labeled forms.