291527-75-8Relevant academic research and scientific papers
Synthesis and biological evaluation of phosphatidylinositol phosphate affinity probes
Conway, Stuart J.,Gardiner, James,Grove, Simon J. A.,Johns, Melloney K.,Lim, Ze-Yi,Painter, Gavin F.,Robinson, Diane E. J. E.,Schieber, Christine,Thuring, Jan W.,Wong, Leon S.-M.,Yin, Meng-Xin,Burgess, Antony W.,Catimel, Bruno,Hawkins, Phillip T.,Ktistakis, Nicholas T.,Stephens, Leonard R.,Holmes, Andrew B.
scheme or table, p. 66 - 76 (2010/04/29)
The synthesis of the complete family of phosphatidylinositol phosphate analogues (PIPs) from five key core intermediates A-E is described. These core compounds were obtained from myo-inositol orthoformate 1 via regioselective DIBAL-H and trimethylaluminium-mediated cleavages and a resolution-protection process using camphor acetals 10. Coupling of cores A-E with phosphoramidites 34 and 38, derived from the requisite protected lipid side chains, afforded the fully-protected PIPs. Removal of the remaining protecting groups was achieved via hydrogenolysis using palladium black or palladium hydroxide on carbon in the presence of sodium bicarbonate to afford the complete family of dipalmitoyl- and amino-PIP analogues 42, 45, 50, 51, 58, 59, 67, 68, 76, 77, 82, 83, 92, 93, 99 and 100. Investigations using affinity probes incorporating these compounds have identified novel proteins involved in the PI3K intracellular signalling network and have allowed a comprehensive proteomic analysis of phosphoinositide interacting proteins. The Royal Society of Chemistry 2010.
Comprehensive and uniform synthesis of all naturally occurring phosphorylated phosphatidylinositols
Kubiak, Robert J.,Bruzik, Karol S.
, p. 960 - 968 (2007/10/03)
Studies of cellular signal transduction mechanisms involving receptor-mediated generation of inositol phosphates and phosphorylated phosphatidylinositols require easy access to these naturally occurring products. Although numerous synthetic methods have been developed during the past decade, most of these methods suffer from excessive length and lack of generality. In this work we describe the comprehensive and uniform synthesis of all naturally occurring phosphatidylinositols such as phosphatidylinositol, phosphatidylinositol 3-phosphate, 4-phosphate, 5-phosphate, 3,4-bisphosphate, 3,5-bisphosphate, 4,5-bisphosphate, and 3,4,5-trisphosphate, featuring both saturated and unsaturated fatty acid chains.
Synthesis of dipalmitoyl-phosphatidylinositol 5-phosphate and its modified biological tools
Watanabe,Ishikawa
, p. 8509 - 8512 (2007/10/03)
Synthesis of a dipalmitoyl analog of phosphatidylinositol 5-phosphate with the racemic inositol skeleton was achieved via a key intermediate, 1,2-cyclohexylidene-3,4-tetraisopropyldisiloxanyl-myo-inositol. Probes bearing a fluorophore, NBD on a fatty acid chain and a resin for affinity chromatography were also prepared due to biological interest in cell division. (C) 2000 Elsevier Science Ltd.
Concise syntheses of L-α-phosphatidyl-D-myo-inositol 3-phosphate (3- PIP), 5-phosphate (5-PIP), and 3,5-bisphosphate (3,5-PIP2)
Falck,Krishna, U. Murali,Katipally, Kishta Reddy,Capdevila, Jorge H.,Ulug, Emin T.
, p. 4271 - 4275 (2007/10/03)
Highly efficient, asymmetric total syntheses of the title phospholipids as well as short chain and crosslinkable aminoether analogs were achieved in five to seven steps from a readily available myo-inositol derivative. (C) 2000 Elsevier Science Ltd.
General synthesis of 3-phosphorylated mj'o-inositol phospholipids and derivatives
Painter, Gavin F.,Grove, Simon J. A.,Gilbert, Lan H.,Holmes, Andrew B.,Raithby, Paul R.,Hill, Malcolm L.,Hawking, Phillip T.,Stephens, Leonard R.
, p. 923 - 935 (2007/10/03)
The D-3-phosphorylated wyo-inositol phospholipids PtdIns(3)P, PtdIns(3,4)P2, PtdIns(3,4,5)P3 and PtdIns(3,5)P2 were synthesised from /yo-inositol orthoformate 8. Key transformations included the regioselective DIBAL- and trimethylaluminium-mediated cleavages of wiyo-inositol orthoformate intermediates and a resolution-protection protocol using the camphor acetals 17. The final reductive debenzylation was effected with Pearlman's catalyst [Pd(OH)J in the presence of sodium hydrogen carbonate. The biological properties of the phospholipids were evaluated against various protein kinases (PKB and PDK-1) in which they played an important activation role.
Asymmetric Total Synthesis of Phosphatidylinositol 3-Phosphate and 4-Phosphate Derivatives
Chen, Jian,Feng, Li,Prestwich, Glenn D.
, p. 6511 - 6522 (2007/10/03)
New asymmetric syntheses of phosphatidylinositol 3-phosphate (PtdIns(3)P) and phosphatidylinositol 4-phosphate (PtdIns(4)P) derivatives are described. Key intermediates were used to prepare diacylglyceryl moieties with dibutyryl, dioctanoyl, and dihexadecanoyl chains. In addition, a modified route provided PtdIns(3)P and PtdIns(4)P triesters with P-1-linked aminopropyl groups for preparation of affinity probes. The synthesis of the inosityl precursor employed a dibutyltin oxide-mediated p-methoxybenzyl (PMB) etherification to give either the 2-PMB- or the 3-PMB-protected glucopyranosides. The Ferrier rearrangement was used to convert suitably protected glucose derivatives to enantiomerically pure, differentially protected D-myo-inositol key intermediates. A versatile phosphoramidite reagent was employed to allow synthesis of PtdInsPn derivatives with diacylglyceryl moieties of different chain lengths.
Synthesis of the D-3 series of phosphatidylinositol phosphates
Wang, Da-Sheng,Chen, Ching-Shih
, p. 5905 - 5910 (2007/10/03)
The 3-mono-, 3,4-bis-, and 3,4,5-trisphosphates of L-α-phosphatidyl-D-myo-inositol have been synthesized in their optically active forms from the two enantiomers of 1,2:5,6-di-O-cyclohexylidene-myo-inositol. These chiral precursors were prepared by a facile biocatalytic resolution, in which the 4-butyryl ester of the racemic compound was subjected to enantioselective hydrolysis by porcine pancreatic lipase in a biphasic system. The overall yield from individual chiral precursors ranged from 32% for the 3,4,5-trisphosphate to 39% for the monophosphate.
