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9 results on '"Auzzas, Luciana"'

1. Viable access to (4a-carbapentofuranosyl)amines, (5a-carbahexopyranosyl)amines, and amino acids thereof

Author

Rassu, Gloria, Auzzas, Luciana, Pinna, Luigi, Zambrano, Vincenzo, Zanardi, Franca, Battistini, Lucia, Marzocchi, Lucia, Acquotti, Domenico, and Casiraghi, Giovanna

Subjects
Chemistry, Organic -- Research, Amino acids -- Physiological aspects, Carbon compounds -- Physiological aspects, Furans -- Physiological aspects, Biomimetics -- Research, Chirality -- Physiological aspects, Biological sciences, Chemistry
Abstract

Research has been conducted on the carbafuranosylamines. The chiral synthesis of these compounds has been carried out and the results indicate that they can be used as secondary structure-inducing platforms for engineering the biomimetic structures and glycopeptidomimetics.

Published
2002

2. Diversity-based synthesis of beta-D-xylo, beta-D-ribo, beta-L-arabino, and beta-L-lyxo 4a-carbafuranoses and (4a-carbafuranosyl)thiols

Author

Rassu, Gloria, Auzzas, Luciana, Pinna, Luigi, Zambrano, Vincenzo, Battistinni, Lucia, Zanardi, Franca, Marzocchi, Lucia, Acquotti, Domenico, and Casiraghi, Giovanni

Subjects
Chemistry, Organic -- Research, Carbon -- Physiological aspects, Furans -- Physiological aspects, Thiols -- Physiological aspects, Biological sciences, Chemistry
Abstract

Research has been conducted on the carbasugars. The siloxy diene-based construction of these carbasugars has been investigated via the silylative cycloaldolization protocol and the results are reported.

Published
2001

3. Variable strategy toward carbasugars and relatives. 1. stereocontrolled synthesis of pseudo-beta-D-gulopyranose, pseudo-beta-D-xylofuranose, (pseudo-beta-D-gulopyranosyl)amine, and (pseudo-beta-D-xylofuranosyl)amine

Author

Rassu, Gloria, Auzzas, Luciana, Pinna, Luigi, Battistini, Lucia, Zanardi, Franca, Marzocchi, Lucia, Acquotti, Domenico, and Casiraghi, Giovanni

Subjects
Deoxy sugars -- Analysis, Ring formation (Chemistry) -- Analysis, Chirality -- Analysis, Conformational analysis -- Research, Enantiomers -- Analysis, Organic compounds -- Synthesis, Biological sciences, Chemistry
Abstract

Research describes a methodology for an enantiospecific syntheses of pseudo-sugars and their variants. Construction of novel nonracemic pseudo-pyranoses, pseudo-furanoses of the D sugar type starting from D-glyceraldehyde acetonide and the corresponding ring-based dienoxy silane pair is presented.

Published
2000

4. The utility of furan-, pyrrole-, and thiophene-based 2-silyloxy dienes as demonstrated by modular synthesis of annonaceous acetogenin core units and their pyrrolidine and thiolane analogues

Author

Zanardi, Franca, Battistini, Lucia, Rassu, Gloria, Auzzas, Luciana, Pinna, Luigi, Marzocchi, Lucia, Acquotti, Domenico, and Casiraghi, Giovanni

Subjects
Plant metabolites -- Research, Organic compounds -- Synthesis, Ring formation (Chemistry) -- Analysis, Polyketides -- Research, Biological sciences, Chemistry
Abstract

Results point out that the utility and malleability of the vinylogous version of the Mukaiyama aldol and Mannich-type addition reactions with heterocyclic triad building modules for the synthesis of a repertoire of annonaceous acetogenin core units and their nitrogen and sulfur analogues.

Published
2000

6. New enantioselective entry to cycloheptane amino acid polyols

Author

Curti, Claudio, Zanardi, Franca, Battistini, Lucia, Sartori, Andrea, Rassu, Gloria, Auzzas, Luciana, Roggio, Annamaria, Pinna, Luigi, and Casiraghi, Giovanni

Subjects
Polyols -- Chemical properties, Amino acids -- Chemical properties, Biological sciences, Chemistry
Abstract

A diversity-oriented protocol is developed for the assembly of densely hydroxylated cycloheptane amino acids via succession of a vinylogous Mukaiyama aldol reaction (VMAR), a Morita-Baylis-Hillman reaction (MBHR), and an intramolecular pinacol coupling reaction (IPCR). The parallel, asymmetric syntheses of four cycloheptane representatives proceed with high diastereocontrol and virtually complete enantioselectivity in ten steps and overall yields of 15-37%.

Published
2006

7. Enantioselective total synthesis of (1R,3S,4R,5R)-1-amino-4,5-dihydroxycyclopentane-1,3-dicarboxylic acid. A full-aldol access to carbaketose derivatives

Author

Battistini, Lucia, Curti, Claudio, Zanardi, Franca, Rassu, Gloria, and Auzzas, Luciana; Casiraghi, Giovanni

Subjects
Glutamate -- Research, Chirality -- Research, Carboxylic acids -- Research, Biological sciences, Chemistry
Abstract

Stereoselective synthetic route to L-glutamic acid related to amino acid provide a foundation for the synthesis of novel metabotropic glutamate receptor probes and relevant densely functionalized carba-ketose constructs.

Published
2004

8. Variable strategy toward carbasugars and relatives. 6. diastereoselective synthesis of 2-deoxy-2-amino-5a-carba-beta-L-mannopyranuronic acid and 2-deoxy-2amino-5a-carba-beta-L-mannapyranose

Author

Rassu, Gloria, Auzzas, Luciana, Zambrano, Vincenzo, Burreddu, Paola, and Pinna, Luigi ; Battistini, Lucia ; Zanardi, Franca ; Casiraghi, Giovanni

Subjects
Amino sugars -- Research, Carbohydrates -- Research, Biological sciences, Chemistry
Abstract

The experiment conducted to achieve the efficient, total synthesis of novel 2-deoxy-2-amino-5a-carba-beta-L-mannopyranuronic acid and 2-deoxy-2amino-5a-carba-beta-L-mannapyranose, is presented. The method used in this study is based on a rational adaptation of original project and involves the use of a suitable chiral nonracemic aldimine predecessor.

Published
2004

9. Focus on preparation of chiral nonracemic medium-sized carbocycles

Author

Rassu, Gloria, Auzzas, Luciana, Pinna, Luigi, Zambrano, Vincenzo, Zanardi, Franca, Battistini, Lucia, Gaetani, Enrico, Curti, Claudio, and Casiraghi, Giovanni

Subjects
Ring formation (Chemistry) -- Analysis, Furans, Silane, Cyclic compounds -- Composition, Racemization -- Analysis, Carbohydrates, Chemistry, Organic -- Research, Organic compounds -- Composition, Chirality, Biological sciences, Chemistry
Abstract

Research has been conducted on vinylogous aldol and silylative aldol addition reactions. The authors describe the feasibility of these reactions which involve pyrrole- and furan-based dienoxysilanes in the synthesis of carbasugar framework.

Published
2003

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