SCF technology is an innovative method for the stereocomplexation of PDLA and PLLA enantiomers
. This study identified various SCF parameters that can affect the particle size and morphological behavior of sc-PLA, and analyzed the influence of subsequent processing such as homogenization, mechanical stirring, and sonication on these sc-PLA particles.
Another factor to be considered is that, in the racemic formulations, only some enantiomers
present insecticidal action.
The difference was due to R (+) enantiomer
of bupivacaine exerting a synergistic effect on binding characteristics of S (-) enantiomer
of bupivacaine to the motor nerves and in their absence binding is less and effect terminates earlier/20) Locatelli et al.
The racemic compound A-5, obtained from the anthracene- and furan-containing Schiff base S-2, appeared least effective in terms of growth inhibition, whereas both corresponding enantiomers
(A-5a and A-5b) achieved markedly lower [IC.sub.50] values, especially in the leukemic subtypes of lymphoid origin (SKW-3 and REH cells).
The use of direct separation technique for the enantiomers
implies the use of chiral selector which can be either immobilized on the stationary phase of the column or dissolved in the mobile phase of the separation system as in the case for some HPLC and CE chiral methods .
One of them is intramolecular in the case of enantiomers
[15, 16] while all four are intermolecular for DL .
(36) When there is only one chiral center in a compound, there will be two stereoisomers that are mirror images of each other, called "enantiomers
." (37) Enantiomers
contain the same atoms and have identical physical and chemical properties, except that they rotate polarized light in opposite directions and react differently with other chiral molecules.
Warfarin has two enantiomers
(R-warfarin and S-warfarin), and it is absorbed from the gastrointestinal (GI) tract at the rate of 93%.
The author argues that modern stereochemistry is based on a set of terms that are not rooted in mathematical foundations and create confusion due to a misleading dichotomy between enantiomers
and diastereomers; confusion of reflections with permutations; misleading concepts of stereogeneic units, chirality units, and pseudoasymmetric units; a misleading presumption of a single pair of chirality/achirality; and the misleading terms of stereoheterotopic, anatiotopic, and diastereotopic.
Chiral Technologies, a leader in enantioselective chromatography, serves pharmaceutical and other life science industries and offers a portfolio of chiral stationary phases and analytical and preparative chiral columns for the separation of racemic mixtures into single enantiomers
of 1,1'-binaphthol are eluted at [t.sub.1] and [t.sub.2], and a non-retained compound is eluted at [t.sub.0].
of the chiral compounds show different biological activities in the living systems during the medical and pharmaceutical processes.
The transmembrane pores having relatively small diameter might be responsible for the selective separation of enantiomers
. Mostly liquid membranes are facilitated permeation membranes.
This makes it possible for the olfactory receptors to distinguish between enantiomers
. Many enantiomers
of fragrance molecules are perceived differently by our sense of smell.
This can give rise to a total of 16 possible optical isomers, 6 pairs of enantiomers
, and 4 meso forms.