stereoisomers


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stereoisomers

[¦ster·ē·ō′ī·sə·mərz]
(organic chemistry)
Compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationship.
References in periodicals archive ?
Since most enzymes present stereoselectivity, some studies cite different patterns of biochemical transformation of chiral compounds, which directly influence the persistence and preferential bioaccumulation of stereoisomers [11].
Geottke, Use of a Stereoisomer Mixture of Diaminomethylcyclohexane as a Hardener for Epoxy Resins, US Patent Application 20120226017, 2012.
The configuration of chiral centers in the obtained stereoisomers of [gamma]-halo-[delta]-lactones 3, 5, 7 was determined indirectly, taking advantage of the fact that the product of their 1,3-elimination-cyclization 9 is a known compound, obtained in the form of enantiomers, and having an established stereochemical structure.
Stereoisomers of Astaxanthin Inhibit Human Colon Cancer Cell Growth by Inducing G2/M Cell Cycle Arrest and Apoptosis.
D-2-hydroxyglutarate and L-2-hydroxyglutarate are stereoisomers; however, they are produced through distinct biological mechanisms.
As we were not interested in any separation of stereoisomers, we settled on the cheapest, achiral LSR, Erbium(III) tris(2,2,6,6-tetramethyl-3,5-heptanedionate), Er(TMHD),.
CM-HBCD stereoisomers are gamma ([gamma]-HBCD; 75-89%), alpha ([alpha]-HBCD; 10-13%), and beta ([beta]-HBCD; 1-12%) (Heeb et al.
Most pharmaceutical compounds, for instance, are synthesized as a mixture of chemically distinct molecules called stereoisomers. (35) The most common type of stereoisomerism results from so-called "chiral centers," carbon atoms bonded to four different parts, which can be either "right-handed" (R) or "left-handed" (S).
In the present work, both sources of astaxanthin in free form (without esterification) and purified by high-performance liquid chromatography, containing different stereoisomers, were used.
There are nine inositol stereoisomers, and myoinositol is the most represented in cellular content [6].