Linked Life Data

17173882

Source:http://linkedlifedata.com/resource/pubmed/id/17173882

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-1-16
pubmed:abstractText
We report the preparation of 12 aldonamides derived from D-glycero-D-gulo-heptono-1,4-lactone, their NMR characterization and study (13C, 1H, 15N NMR) in Me2SO-d6 solution. The evaluation of the coupling constants 3JH,H has shown that the sugar chain conformation in solution is all-trans for the studied amides. Because some amides crystallized, we discussed the crystal packing and found motifs. The conformation of the amides in the crystal structures displays two sickles at C2 and C3, with the exception of one that is all-trans. The bends cause the formation of the mean planes C1-C2-C3 and C3-C4-C5-C6-C7 with an average interplanar angle of 88 degrees. We found three main kinds of crystal packing depending on the N-substituent; head-to-tail, bilayer and pseudo-hexagonal mode, all the three show hydrogen-bonding networks that stabilize the crystal lattice.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0008-6215
pubmed:author
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
342
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
243-53
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Crystal structure and NMR spectroscopy of aldonamides derived from D-glycero-D-gulo-heptono-1,4-lactone.
pubmed:affiliation
Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos, México, CP 62209, Mexico. memaljo@yahoo.com
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't