544686-85-3Relevant academic research and scientific papers
Regioselective phosphorylation of: Myo -inositol with BINOL-derived phosphoramidites and its application for protozoan lysophosphatidylinositol
Aiba, Toshihiko,Sato, Masaki,Umegaki, Daichi,Iwasaki, Takanori,Kambe, Nobuaki,Fukase, Koichi,Fujimoto, Yukari
, p. 6672 - 6675 (2016/07/21)
A regioselective phosphorylation method for myo-inositol was developed by utilizing readily preparable BINOL-derived phosphoramidites. The method also facilitated the complete separation of the diastereomeric products by simple chromatography. Based on this phosphorylation and Ni-catalyzed alkyl-alkyl cross-coupling reaction for long fatty acids, we achieved the first synthesis of a lysophosphatidylinositol, EhPIa having long fatty acid C30:1, as a partial structure of glycosylphosphatidylinositol (GPI) anchor from the cell membrane of a protozoa, Entamoeba histolytica.
Synthesis, structural elucidation, and biochemical analysis of immunoactive glucuronosyl diacylglycerides of mycobacteria and corynebacteria
Cao, Benjamin,Chen, Xingqiang,Yamaryo-Botte, Yoshiki,Richardson, Mark B.,Martin, Kirstee L.,Khairallah, George N.,Rupasinghe, Thusita W.T.,O'Flaherty, Roisin M.,O'Hair, Richard A.J.,Ralton, Julie E.,Crellin, Paul K.,Coppel, Ross L.,McConville, Malcolm J.,Williams, Spencer J.
, p. 2175 - 2190 (2013/04/23)
Glucuronosyl diacylglycerides (GlcAGroAc2) are functionally important glycolipids and membrane anchors for cell wall lipoglycans in the Corynebacteria. Here we describe the complete synthesis of distinct acyl-isoforms of GlcAGroAc2 bearing both acylation patterns of (R)-tuberculostearic acid (C19:0) and palmitic acid (C 16:0) and their mass spectral characterization. Collision-induced fragmentation mass spectrometry identified characteristic fragment ions that were used to develop rules allowing the assignment of the acylation pattern as C19:0 (sn-1), C16:0 (sn-2) in the natural product from Mycobacterium smegmatis, and the structural assignment of related C18:1 (sn-1), C16:0 (sn-2) GlcAGroAc2 glycolipids from M. smegmatis and Corynebacterium glutamicum. A synthetic hydrophobic octyl glucuronoside was used to characterize the GDP-mannose-dependent mannosyltransferase MgtA from C. glutamicum that extends GlcAGroAc2. This enzyme is an Mg2+/Mn2+- dependent metalloenzyme that undergoes dramatic activation upon reduction with dithiothreitol.
Synthesis of structural variants of Staphylococcus aureus lipoteichoic acid (LTA)
Figueroa-Perez, Ignacio,Stadelmaier, Andreas,Morath, Siegfried,Hartung, Thomas,Schmidt, Richard R.
, p. 493 - 506 (2007/10/03)
Based on 1,2-O-isopropylidene-sn-glycerol, which is readily available from d-mannitol, five chiral building blocks for the construction of structural variants of Staphylococcus aureus LTA designed and synthesized. Ligation of these building blocks led readily to the target molecules 1 and 2. They demonstrated that the d-alanine residues at the glycerophosphate backbone are decisive for the activation of the immune system.
