168103-00-2Relevant articles and documents
Expedient synthesis of the heneicosasaccharyl mannose capped arabinomannan of the Mycobacterium tuberculosis cellular envelope by glycosyl carbonate donors
Islam, Maidul,Shinde, Ganesh P.,Hotha, Srinivas
, p. 2033 - 2038 (2017/03/09)
The global incidence of tuberculosis is increasing at an alarming rate, and Mycobacterium tuberculosis (Mtb) is the causative agent for tuberculosis, a disease with high mortality. Lipoarabinomannan (LAM) is one of the major components of the Mtb cellular envelope and is an attractive scaffold for developing anti-tubercular drugs, vaccines and diagnostics. Herein, a highly convergent strategy is developed to synthesize heneicosasaccharyl arabinomannan for the first time. The arabinomannan synthesized in this endeavour has several 1,2-trans or α-Araf linkages and three 1,2-cis or β-Araf linkages end capped with 1,2-trans or α-Manp linkages. All the key glycosidations were performed with alkynyl carbonate glycosyl donors under [Au]/[Ag] catalysis conditions, which gave excellent yields and stereoselectivity even for the reactions between complex and branched oligosaccharides. The resultant allyl oligosaccharide was globally deprotected to obtain the heneicosasaccharyl arabinomannan as a propyl glycoside. In summary, heneicosasaccharyl mannose capped arabinomannan synthesis was achieved in 56 steps with 0.016% overall yield.
Synthesis and biological evaluation of arabinose 5-phosphate mimics modified at position five
Cipolla, Laura,Airoldi, Cristina,Sperandeo, Paola,Gianera, Serena,Polissi, Alessandra,Nicotra, Francesco,Gabrielli, Luca
, p. 186 - 191 (2014/05/20)
A set of new metabolically stable arabinose 5-phosphate analogues possessing phosphate mimetic groups at position 5 was synthesised. Their ability to interact with arabinose 5-phosphate isomerase from Pseudomonas aeruginosa was evaluated by STD-NMR studie
Phosphonate analogues of arabinose 5-phosphate: Putative ligands for arabinose 5-phosphate isomerases
Gabrielli, Luca,Airoldi, Cristina,Sperandeo, Paola,Gianera, Serena,Polissi, Alessandra,Nicotra, Francesco,Cipolla, Laura
, p. 7776 - 7784 (2013/12/04)
Metabolically stable arabinose 5-phosphate analogues possessing phosphate mimetic groups at the 5-position were synthesized and evaluated by saturation-transfer-difference (STD) NMR studies for their ability to interact with arabinose 5-phosphate isomeras
Exploring the conformational and biological versatility of β-turn-modified gramicidin s by using sugar amino acid homologues that vary in ring size
Knijnenburg, Annemiek D.,Tuin, Adriaan W.,Spalburg, Emile,De Neeling, Albert J.,Mars-Groenendijk, Roos H.,Noort, Daan,Otero, Jose M.,Llamas-Saiz, Antonio L.,Van Raaij, Mark J.,Van Der Marel, Gijs A.,Overkleeft, Herman S.,Overhand, Mark
, p. 3995 - 4004 (2011/05/11)
Monobenzylated sugar amino acids (SAAs) that differ in ether ring size (containing an oxetane, furanoid, and pyranoid ring) were synthesized and incorporated in one of the β-turn regions of the cyclo-decapeptide gramicidin S (GS). CD, NMR spectroscopy, mo
Efficient synthesis of syringolides, secosyrins, and syributins through a common approach
Varvogli, Anastasia-Aikaterini C.,Karagiannis, Ioannis N.,Koumbis, Alexandros E.
experimental part, p. 1048 - 1058 (2009/04/10)
A new common synthetic approach toward the elicitors syringolides and their related natural products, secosyrins and syributins, is described here. This uses d-arabinose as starting material and efficiently delivers the targeted compounds through a sequen