diastereoisomer

(redirected from diastereoisomers)
Also found in: Medical, Encyclopedia.

diastereoisomer

(ˌdaɪəˌstɛrɪəʊˈaɪsəmə) or

diastereomer

n
(Chemistry) chem a type of isomer that differs in the spatial arrangement of atoms in the molecule, but is not a mirror image; a stereoisomer that is not an enantiomer
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Translations
diastéréo-isomère
Mentioned in ?
References in periodicals archive ?
However, indirect chiral separation can be achieved by converting enantiomers to diastereoisomers via derivatization reaction of the targeted compounds with optically pure chiral derivatizing agents (CDAs) [9].
2-methylcitrate elutes as a double peak, representing diastereoisomers. Propionylglycine excretion is variable in PA.
To test it, we converted free energies of formation of both (HB-O and HB-N) forms of competing diastereoisomers to percentage distribution.
This compound is a racemic mixture, and investigations have demonstrated that both diastereoisomers have similar activity in vitro against Plasmodium.
Xie et al., "Determination of hexabromocyclododecane diastereoisomers in Sargassum fusiforme and comparison of the extraction efficiency of ultrasonication, microwave-assisted extraction, Soxhlet extraction and pressurised liquid extraction," Journal of Separation Science, vol.
Importantly, until recently SAM-e's benefit was virtually unknown, due to it is extreme instability at temperatures above 0[degrees] C, or in the presence of moisture, "both as degradation of the active ingredient intended as the sum of the two diastereoisomers, and as transformation of active (SS)-(+)-S-adenosyl-L-methionine into inactivate (RS)-(+)-S-adenosyl-L-methionine (racemisation of the substance)." (13)
Silybin makes up more than 50% of silymarin and is made up of a mixture of two diastereoisomers, silybin A and silybin B.
Huang, Complete NMR spectral assignments of two new iridoid diastereoisomers from the flowers of Plumeria rubra L.