Intracellular Mediators: Synthesis of L-.alpha.-Phosphatidyl-D-myo-inositol 3,4,5-Trisphosphate and Glyceryl Ether Analogs
作者:K. Kishta Reddy、Mourad Saady、J. R. Falck、Gregg Whited
DOI:10.1021/jo00116a023
日期:1995.6
L-alpha-Phosphatidyl-D-myo-inositol 3,4,5-trisphosphate (3,4,5-PIP3), the mot prominent member of a new class of intracellular second messengers, and two ether analogs were conveniently prepared from the differentially functionalized D-myo-inositol intermediate 7 which was ultimately derived from the unique cyclitol precursor dehydroshikimic acid(1). Critical transformations included the stereoselective hydride reduction of the shikimate ketone, exclusive osmylation from the a-face to give 3, controlled enolization of 4, and dioxirane epoxidation with in situ rearrangement affording ketone 5. Dioctanoyl 3,4,5-PIP3 (9a) and its dioctyl ether analog Sb;selectively activated the delta, epsilon, and eta-isotypes of protein kinase C (PKC).