✦ LIBER ✦

A new type of glycolipid, 1-[α-mannopyranosyl-(1α-3)-(6-O-acyl-α-mannopyranosyl)]-3-O-acylglycerol, from Arthrobacter atrocyaneus

✍ Scribed by Tanja Niepel; Holger Meyer; Victor Wray; Wolf-Rainer Abraham

Book ID: 104207646
Publisher: Elsevier Science
Year: 1997
Tongue: French
Weight: 531 KB
Volume: 53
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(97)00079-3

No coin nor oath required. For personal study only.

✦ Synopsis

The polar lipids from the bacterium Arthrobacter atrocyaneus LMG 3814T were analyzed and a novel type of glycolipid isolated. Its structure was elucidated by the combination of different NMR techniques and FAB-MS/MS in the positive and negative modes. The glycolipid was identified as l-[c~mannopyranosyl-(lct-3)-(6-O-acyl-tx-mannopyranosyl)]-3-O-acylglycerol. The main compound had 14methyl-hexadecanoic acid at the glycerol moiety and 12-methyl-tetradecanoic acid at C-6 of the inner mannose unit. Additionally six minor compounds were also identified with different fatty acids. Under (+)-FAB ionization dominant daughter ions were observed through neutral loss of hydrocarbons generated from the acyl fatty acids. Negative-ion MS/MS allowed the identification of the phospholipids which consisted of five phosphatidylglycerols and seven cardiolipins.

📜 SIMILAR VOLUMES

Syntheses of the octyl and tetradecyl gl

Syntheses of the octyl and tetradecyl glycosides of 3,6-di-O-α-d-mannopyranosyl-α-d-mannopyranose and of 3,4-di-O-α-d-mannopyranosyl-α-d-mannopyranose. A new way for 2,4-di-O-protection of mannopyranosides

✍ Stefan Oscarson; Anna-Karin Tidén 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 476 KB

Anomalous Zemplén deacylation reactions

Anomalous Zemplén deacylation reactions of 2-O-acyl-3-O-alkyl or -3-O-glycosyl derivatives of d-galactose and d-glucose: synthesis of O-α-d-mannopyranosyl-(1→4)-O-α-l-rhamnopyranosyl-(1→3)-d-galactose and an intermediate for the preparation of 2-O-glycosyl-3-O-(α-d-mannopyranosyl)-d-glucoses

✍ Zoltán Szurmai; András Lipták; Günther Snatzke 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 476 KB

Synthesis of Potassium (2R)-2-O-α-D-Mann

Synthesis of Potassium (2R)-2-O-α-D-Mannopyranosyl-(1→2)-α-D-glucopyranosyl-2,3-dihydroxypropanoate: A Naturally Compatible Solute

✍ Eva C. Lourenço; M. Rita Ventura 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 396 KB 👁 1 views

ChemInform Abstract: Synthesis of p-Trif

ChemInform Abstract: Synthesis of p-Trifluoroacetamidophenyl (4,6-dideoxy-4-formamido-3-C-methyl-2-O-methyl-α-L-mannopyranosyl) -(1→3)-(2-O-methyl-α-D-rhamnopyranosyl)-(1→3)- (2-O-methyl-α-L-fuco# pyranosyl)-(1→3)-(α-L-rhamnopyranosyl)- (1→2)-6-deoxy-α-L-talopyranoside: A Spacer-Armed Pentasaccharide Glycopeptidolipid Antigen of Mycobacterium avium Serovar 14.

✍ I. BAJZA; K. E. KOEVER; A. LIPTAK 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 1 views

ChemInform Abstract: New 1-O-Acyl α-L-Rh

ChemInform Abstract: New 1-O-Acyl α-L-Rhamnopyranosides and Rhamnosylated Lactones from Streptomyces sp., Inhibitors of 3α-Hydroxysteroid-dehydrogenase (3α-HSD).

✍ Jin-Feng Hu; Dirk Wunderlich; Isabel Sattler; Albert Haertl; Ina Papastavrou; St 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 33 KB 👁 1 views

Synthesis of O-β-d-mannopyranosyl-(1→4)-

Synthesis of O-β-d-mannopyranosyl-(1→4)-O-α-l-rhamnopyranosyl-(1→3)-d-galactopyranose, the trisaccharide repeating-unit of the O-specific polysaccharide from Salmonella anatum

✍ N.K. Kochetkov; B.A. Dmitriev; N.N. Malysheva; A.Ya. Chernyak; E.M. Klimov; N.E. 📂 Article 📅 1975 🏛 Elsevier Science 🌐 English ⚖ 639 KB