Information om | Engelska ordet STEREOSELECTIVELY

Exempel på hur man kan använda STEREOSELECTIVELY i en mening

• The half-chair conformation indicates that attack occurs stereoselectively on the diastereomer where the electrophilic carbon can receive the nucleophile and proceed to the favored chair conformation.
• As stated in the introduction, strictosidine synthase catalyzes the biological Pictet–Spengler reaction of tryptamine and secologanin to stereoselectively form 3-alpha(S)-strictosidine, the universal precursor for monoterpenoid indole alkaloid compounds.
• This sterically crowded chiral trialkylborane can stereoselectively reduce aldehydes in what is known as the Midland Alpine borane reduction, or simply the Midland reduction.
• The medication is stereoselectively metabolized into trimegestone, the 21(S)-hydroxy metabolite, which is the main compound found in plasma; it circulates at levels approximately twice those of promegestone itself.
• It is thought that under the reaction conditions, the chloro ether can epimerize and thiourea can stereoselectively bind chloride to form a closely associated ion pair.
• This species is also able to stereoselectively biotransform rac-mexiletine into hydroxymethyl mexiletine (HMM) and p-hydroxymexiletine (PHM), two metabolites also produced in humans.
• The addition can be done highly regio- and stereoselectively, although the choices of metal, ligands, and counterions often play very important role.

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