Multicentered hydrogen bonding in 1-[(1-deoxy-β-d-fructopyranos-1-yl)azaniumyl]cyclopentanecarboxylate (`d-fructose-cycloleucine')
The title compound, C12H21NO7, (I), is conformationally unstable; the predominant form present in its solution is the β-pyranose form (74.3%), followed by the β- and α-furanoses (12.1 and 10.2%, respectively), α-pyranose (3.4%), and traces of the acyclic carbohydrate tautomer. In the crystalline sta...
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| Format: | Article |
| Language: | English |
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International Union of Crystallography
2019-08-01
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| Series: | Acta Crystallographica Section E: Crystallographic Communications |
| Subjects: | |
| Online Access: | http://scripts.iucr.org/cgi-bin/paper?S2056989019009253 |
| _version_ | 1819279419985887232 |
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| author | Valeri V. Mossine Charles L. Barnes Thomas P. Mawhinney |
| author_facet | Valeri V. Mossine Charles L. Barnes Thomas P. Mawhinney |
| author_sort | Valeri V. Mossine |
| collection | DOAJ |
| description | The title compound, C12H21NO7, (I), is conformationally unstable; the predominant form present in its solution is the β-pyranose form (74.3%), followed by the β- and α-furanoses (12.1 and 10.2%, respectively), α-pyranose (3.4%), and traces of the acyclic carbohydrate tautomer. In the crystalline state, the carbohydrate part of (I) adopts the 2C5 β-pyranose conformation, and the amino acid portion exists as a zwitterion, with the side chain cyclopentane ring assuming the E9 envelope conformation. All heteroatoms are involved in hydrogen bonding that forms a system of antiparallel infinite chains of fused R33(6) and R33(8) rings. The molecule features extensive intramolecular hydrogen bonding, which is uniquely multicentered and involves the carboxylate, ammonium and carbohydrate hydroxy groups. In contrast, the contribution of intermolecular O...H/H...O contacts to the Hirshfeld surface is relatively low (38.4%), as compared to structures of other d-fructose-amino acids. The 1H NMR data suggest a slow rotation around the C1—C2 bond in (I), indicating that the intramolecular heteroatom contacts survive in aqueous solution of the molecule as well. |
| first_indexed | 2024-12-24T00:27:37Z |
| format | Article |
| id | doaj.art-c162ff31e4364007b830a9bb06c6aa02 |
| institution | Directory Open Access Journal |
| issn | 2056-9890 |
| language | English |
| last_indexed | 2024-12-24T00:27:37Z |
| publishDate | 2019-08-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Acta Crystallographica Section E: Crystallographic Communications |
| spelling | doaj.art-c162ff31e4364007b830a9bb06c6aa022022-12-21T17:24:24ZengInternational Union of CrystallographyActa Crystallographica Section E: Crystallographic Communications2056-98902019-08-017581096110110.1107/S2056989019009253eb2020Multicentered hydrogen bonding in 1-[(1-deoxy-β-d-fructopyranos-1-yl)azaniumyl]cyclopentanecarboxylate (`d-fructose-cycloleucine')Valeri V. Mossine0Charles L. Barnes1Thomas P. Mawhinney2Department of Biochemistry, University of Missouri, Columbia, MO 65211, USADepartment of Chemistry, University of Missouri, Columbia, MO 65211, USADepartment of Biochemistry, University of Missouri, Columbia, MO 65211, U.S.A.The title compound, C12H21NO7, (I), is conformationally unstable; the predominant form present in its solution is the β-pyranose form (74.3%), followed by the β- and α-furanoses (12.1 and 10.2%, respectively), α-pyranose (3.4%), and traces of the acyclic carbohydrate tautomer. In the crystalline state, the carbohydrate part of (I) adopts the 2C5 β-pyranose conformation, and the amino acid portion exists as a zwitterion, with the side chain cyclopentane ring assuming the E9 envelope conformation. All heteroatoms are involved in hydrogen bonding that forms a system of antiparallel infinite chains of fused R33(6) and R33(8) rings. The molecule features extensive intramolecular hydrogen bonding, which is uniquely multicentered and involves the carboxylate, ammonium and carbohydrate hydroxy groups. In contrast, the contribution of intermolecular O...H/H...O contacts to the Hirshfeld surface is relatively low (38.4%), as compared to structures of other d-fructose-amino acids. The 1H NMR data suggest a slow rotation around the C1—C2 bond in (I), indicating that the intramolecular heteroatom contacts survive in aqueous solution of the molecule as well.http://scripts.iucr.org/cgi-bin/paper?S2056989019009253crystal structurefructosamineAmadori rearrangementcycloleucinehydrogen bondingHirshfeld surface analysis |
| spellingShingle | Valeri V. Mossine Charles L. Barnes Thomas P. Mawhinney Multicentered hydrogen bonding in 1-[(1-deoxy-β-d-fructopyranos-1-yl)azaniumyl]cyclopentanecarboxylate (`d-fructose-cycloleucine') Acta Crystallographica Section E: Crystallographic Communications crystal structure fructosamine Amadori rearrangement cycloleucine hydrogen bonding Hirshfeld surface analysis |
| title | Multicentered hydrogen bonding in 1-[(1-deoxy-β-d-fructopyranos-1-yl)azaniumyl]cyclopentanecarboxylate (`d-fructose-cycloleucine') |
| title_full | Multicentered hydrogen bonding in 1-[(1-deoxy-β-d-fructopyranos-1-yl)azaniumyl]cyclopentanecarboxylate (`d-fructose-cycloleucine') |
| title_fullStr | Multicentered hydrogen bonding in 1-[(1-deoxy-β-d-fructopyranos-1-yl)azaniumyl]cyclopentanecarboxylate (`d-fructose-cycloleucine') |
| title_full_unstemmed | Multicentered hydrogen bonding in 1-[(1-deoxy-β-d-fructopyranos-1-yl)azaniumyl]cyclopentanecarboxylate (`d-fructose-cycloleucine') |
| title_short | Multicentered hydrogen bonding in 1-[(1-deoxy-β-d-fructopyranos-1-yl)azaniumyl]cyclopentanecarboxylate (`d-fructose-cycloleucine') |
| title_sort | multicentered hydrogen bonding in 1 1 deoxy β d fructopyranos 1 yl azaniumyl cyclopentanecarboxylate d fructose cycloleucine |
| topic | crystal structure fructosamine Amadori rearrangement cycloleucine hydrogen bonding Hirshfeld surface analysis |
| url | http://scripts.iucr.org/cgi-bin/paper?S2056989019009253 |
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