Formation of Ester and Amine Derivatives of 5- O -Caffeoylquinic Acid in the Process of Its Simulated Extraction
✍ Scribed by Dawidowicz, Andrzej L.; Typek, Rafal
- Book ID
- 118065278
- Publisher
- American Chemical Society
- Year
- 2012
- Tongue
- English
- Weight
- 544 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0021-8561
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📜 SIMILAR VOLUMES
The stereoselective generation of 3,%disubstituted and 3.5.6~trisubstituted 2-oxopiperazine derivatives can be accomplished by intramolecular reductive amination of P-keto esters derived from Z-Xaa-Gly-OH and Z-Xaa-Yaa-OH dipeptides, respectively. Differences in the stereoselectivity between the use
## Abstract This communication describes the first synthesis of the α‐methyl ketoside of an __N__‐unprotected neuraminic acid in the form of its methyl ester (Neu5NH~2~1Me‐α‐2Me) (5a). This compound is a valuable intermediate for the synthesis of unnatural __N__‐substituted sialic acids. Syntheses