Enantiomer

When switching dosage forms, if the prescriber does not obtain the desired therapeutic endpoint in spite of education about the extensive differences in inhalers, there are alternatives - use of a spacer, increased dose causing more side effects or switching to Xopenex, the R- enantiomer which is the active portion of the racemic albuterol. ❋ 1 Dinosaur (2009)

Nexium is only the S-enantiomer; Prilosec is a racemic mixture. ❋ 1 Dinosaur (2008)

In the context of any electrical field capable of orienting highly polar sugar derivatives, you'd have both selection of ribose, as it binds more closely to the surface, and of one particular enantiomer of ribose. ❋ James F. McGrath (2008)

Nonenzymatic replication may be more resistant to poisoning by the incorrect enantiomer than previously seemed likely. ❋ Unknown (2006)

This is a serious problem because experiments on template-directed synthesis using poly© and the imidazolides of G suggest that the polymerization of the D-enantiomer is often strongly inhibited by the ❋ Unknown (2006)

Strongly autocatalytic processes can be successfully catalysed by relatively small populations of catalyst in this case reaction product, and while we tend to assume that our flask of racemic material is purely 50:50 of each enantiomer, reality is more complex. ❋ Unknown (2005)

A single catalyst molecule can produce millions of molecules of the desired enantiomer. ❋ Unknown (2001)

This product contains more of one enantiomer than of the other, that is, the synthesis is asymmetric. ❋ Unknown (2001)

The enantiomer D was 97.5% of the product and after acid hydrolysis of D, ❋ Unknown (2001)

(R) - limonene smells of oranges while its enantiomer (S) - limonene smells of lemons ❋ Unknown (2001)

The second discovery on which Knowles 'pioneering work is based on, is Horner's and Mislow's syntheses of chiral phosphines, for example the enantiomer B shown in figure 3. ❋ Unknown (2001)

A more recent method, and one that is at the forefront of the field, is to use specially developed chiral chemical catalysts or biocatalysts (enzymes) to synthesize just the desired enantiomer. ❋ Unknown (2010)

Many single-enantiomer chiral drugs have recently hit the market. ❋ Unknown (2010)

D goals in Degussa's chiral program include the manufacture of single-enantiomer amino acids and peptides and derivatives made from them. ❋ Unknown (2010)

The S (-) enantiomer is a potent D3/D2 receptor agonist and is extensively used in the management of PD. ❋ Giulia Ferrari-Toninelli (2010)

Very limited studies are available to characterize the pharmacological spectrum of the R (+) enantiomer of pramipexole. ❋ Giulia Ferrari-Toninelli (2010)

The ketorolac with ibuprofen of review statements for the s-enantiomer and events by 1/5th for the r-enantiomer. ❋ Unknown (2010)

Note 4: (S, S) - Mandyphos-SL-M004-1 in combination with [Rh (NBD) 2] BF4 at subst/catalyst 100: 1 ratio gave 85% ee of (R) enantiomer in MeOH at room temp and 100psi H2 within 2 h 15 min and complete conversion, without any additive. ❋ Milkshake (2010)

The reason, she explains, is that "they don't want to bother to isolate each enantiomer and go through all the toxic studies." ❋ Unknown (2010)

This is, however, time-consuming and expensive; it is also wasteful of resources because the unwanted enantiomer of the molecule (usually half the batch) is typically discarded. ❋ Unknown (2010)