Browse
Submit Data
Databases
API
Help

Dataset Information

17 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

3,4,6-Tri-O-acetyl-1,2-[(S)-ethyl-idene]-β-d-mannopyran-ose.

ABSTRACT: In the title compound, C(14)H(20)O(9), the six-membered pyran and the five-membered dioxalane rings adopt chair and twisted conformations, respectively. In the crystal, the mol-ecules are linked by C-H⋯O inter-actions.

SUBMITTER: Kinfe HH

PROVIDER: S-EPMC3414970 | biostudies-literature |

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Similar Datasets

1-O-Acetyl-3,4,6-tri-O-benzyl-2-C-bromo-methyl-2-de-oxy-?-d-glucopyran-ose.

Project description:In the title compound, C30H33BrO6, the pyran-ose ring adopts a chair conformation. Two of the O-benzyl phenyl rings lie almost perpendicular to C/C/C/O plane formed by the ring atoms not attached to these O-benzyl phenyl rings, and form dihedral angles of 85.1?(2) and 64.6?(2)°, while the third O-benzyl phenyl ring is twisted so that it makes a dihedral angle 34.9?(2)° to this C/C/C/O plane. This twist is ascribed to the formation of an S(8) loop stabilized by a weak intra-molecular C-H?O hydrogen bond.

| S-EPMC3588367 | biostudies-literature

1,2-<i>O</i>-Iso-propyl-idene-β-d-<i>lyxo</i>-furan-ose.

Project description:In the title compound C8H14O5, the pento-furan-ose five-membered ring has a twisted conformation on two carbon atoms while the five-membered ring of the iso-propyl-idene group has an envelope conformation on an oxygen atom. Hy-droxy groups are involved an infinite network of O-H⋯O hydrogen bonds that leads to the formation of a layer parallel to the (001) plane. Only weak C-H⋯O contacts exist between neighboring layers.

| S-EPMC9462171 | biostudies-literature

1,2,3-Tri-O-acetyl-5-de-oxy-d-ribofuran-ose.

Project description:The title compound, C(11)H(16)O(7), was obtained from the breakage reaction of the glycosidic bond of 5'-de-oxy-2',3'-diacetyl-inosine. The ribofuran-ose ring has a C2-exo, C3-endo twist configuration. No alteration of the relative configuration compared with d-(-)-ribose is observed.

| S-EPMC3011534 | biostudies-literature

1,3,4-Tri-O-acetyl-2-N-(tri-fluoro-acetyl)-β-l-fucose.

Project description:The title compound, C14H18F3NO8, was produced through conjugation of 1,3,4-tri-O-acetyl-2-azidode-oxy-α,β-l-fucose with tri-fluoro-acetyl chloride in the presence of bis-(di-phenyl-phosphino)ethane in tetra-hydro-furan at room temperature. The X-ray crystal structure reveals that the β-anomer of the product mixture crystallizes from ethyl acetate/hexa-nes. The compound exists in a typical chair conformation with the maximum possible number of substituents, four out of five, located in the sterically preferred equatorial positions. The major directional force facilitating packing of the mol-ecules are N-H⋯O hydrogen bonds involving the amide moieties of neighboring mol-ecules, which connect mol-ecules stacked along the a-axis direction into infinite strands with a C (1) 1(4) graph-set motif. Formation of the strands is assisted by a number of weaker C-H⋯O inter-actions involving the methine and methyl H atoms. These strands are connected through further C-H⋯O and C-H⋯F inter-actions into a three dimensional network.

| S-EPMC3998300 | biostudies-literature

(R)-3,4,5-Tride-oxy-5,6-didehydro-1,2-O-(2,2,2-trichloro-ethyl-idene)-?-d-gluco-furan-ose-6,3-carbolactone: a new derivative of ?-chloralose.

Project description:THE TITLE COMPOUND [SYSTEMATIC NAME: (R)-2-trichloro-methyl-3a,3b,7a,8a-tetra-hydro-5H-pyrano[2',3':4,5]furano[2,3-d][1,3]dioxol-5-one], C(9)H(7)Cl(3)O(5), a triyclic system that contains a central ?-d-furan-ose ring cis-fused with a dioxolane ring as well as a ?-lactone ring, exhibits a twisted conformation. The CCl(3) group has an axial orientation. The furan-ose ring approximates an envelope conformation due to the ?,?-unsaturated lactone functionality. The asymmetric unit contains two independent mol-ecules with almost identical geometries.

| S-EPMC2960566 | biostudies-literature

N-Benzyl-3,5-dide-oxy-3,5-imino-1,2-O-isopropyl-idene-?-l-lyxofuran-ose.

Project description:X-ray crystallography confirmed the formation, structure and relative stereochemistry of the title compound, C(15)H(19)NO(3), which contains a sterically congested four-membered azetidine ring system. The absolute configuration was determined by the use of l-arabinose as the starting material.

| S-EPMC3414331 | biostudies-literature

1,2:5,6-Di-O-iso-propyl-idene-3-C-methyl-?-d-allo-furan-ose.

Project description:The title carbohydrate, C13H22O6, is a derivative of d-glycose, in which the furan-osidic and iso-propyl-idene rings are in twisted conformations. The mean plane of the furan-osidic ring makes a dihedral angle of 70.32?(18)° with the mean plane of the fused iso-propyl-idene ring. The methyl groups in the other iso-propyl-idene ring are disordered over two sets of sites, with an occupancy ratio of 0.74?(6):0.26?(6). In the crystal, mol-ecules are linked by O-H?O hydrogen bonds into chains with graph-set notation C(5) along [100]. Weak C-H?O interactions also occur.

| S-EPMC3790382 | biostudies-literature

3-De-oxy-1,2-di-O-isopropyl-idene-5-O-tosyl-d-threo-pentofuran-ose.

Project description:In the crystal structure of the title compound, C(15)H(20)O(6)S, the two independent mol-ecules crystalllize in a chiral setting with two different conformations, twisted (4)T(3) and envelope (4)E, for the furan-ose rings. Weak C-H?O contacts strengthen the crystal structure.

| S-EPMC3344058 | biostudies-literature

2-Acetyl-amino-1,3,4,6-tetra-O-(tri-methyl-silyl)-2-de-oxy-α-d-gluco-pyran-ose.

Project description:The title compound, C20H47NO6Si4, was synthesized by per-O-tri-methyl-silylation of N-acetyl-d-glucosa-mine using chloro-tri-methyl-silane in the presence of hexa-methyl-disiloxane. The tri-methyl-silyl group and acetamido group are located on the same side of the pyran ring, showing an α-configuration glycoside. One of the tri-methyl-silyl groups is disordered over two orientations, with site-occupancy factors of 0.625 (9) and 0.375 (9). In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into supra-molecular chains along the a-axis direction.

| S-EPMC3685068 | biostudies-literature

N'-(2-Hy-droxy-1,2-diphenyl-ethyl-idene)benzohydrazide.

Project description:In the title compound, C(21)H(18)N(2)O(2), the amino group is involved in an intra-molecular N-H⋯O hydrogen bond. The rings make dihedral angles of 37.9 (2), 64.4 (2) and 83.6 (2)°. In the crystal, inter-molecular O-H⋯N and O-H⋯O hydrogen bonds link the mol-ecules into chains running along [100].

| S-EPMC2983425 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data