Abstract
A series of new chiral 2-(6,8-dichloro-4-methyl-1,1,3-trioxo-3,4-dihydro-1H-1λ6-benzo[1,2,4]thiadiazin-2-yl) carboxylic acids 7a-g containing the chiral amino acid residue were synthesized by adopting the chemical transformations, which have not affected the chirality of the amino acid residue. No significant racemization of the chiral centre was observed during the synthesis of enantiomeric benzothiadiazine 1,1-dioxide derivatives from the corresponding D and L amino acids. Structures of all the newly synthesized compounds were determined by analytical and spectral data.
Keywords: Chiral benzothiadiazine-1, 1-dioxide carboxylic acids, D and L- amino acid derivatives, N-methylation, esterification, hydrolysis
Letters in Organic Chemistry
Title: Synthesis of Chiral 2-(6,8-dichloro-4-methyl-1,1,3-trioxo-3,4-dihydro-1H-1λ6-benzo[1,2,4]thiadiazin-2-yl) Carboxylic Acids Derived from Enantiomeric Amino Acids
Volume: 4 Issue: 6
Author(s): Imtiyaz Ahmed Khazi and Young-Sik Jung
Affiliation:
Keywords: Chiral benzothiadiazine-1, 1-dioxide carboxylic acids, D and L- amino acid derivatives, N-methylation, esterification, hydrolysis
Abstract: A series of new chiral 2-(6,8-dichloro-4-methyl-1,1,3-trioxo-3,4-dihydro-1H-1λ6-benzo[1,2,4]thiadiazin-2-yl) carboxylic acids 7a-g containing the chiral amino acid residue were synthesized by adopting the chemical transformations, which have not affected the chirality of the amino acid residue. No significant racemization of the chiral centre was observed during the synthesis of enantiomeric benzothiadiazine 1,1-dioxide derivatives from the corresponding D and L amino acids. Structures of all the newly synthesized compounds were determined by analytical and spectral data.
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Imtiyaz Ahmed Khazi and Young-Sik Jung , Synthesis of Chiral 2-(6,8-dichloro-4-methyl-1,1,3-trioxo-3,4-dihydro-1H-1λ6-benzo[1,2,4]thiadiazin-2-yl) Carboxylic Acids Derived from Enantiomeric Amino Acids, Letters in Organic Chemistry 2007; 4 (6) . https://dx.doi.org/10.2174/157017807781467641
DOI https://dx.doi.org/10.2174/157017807781467641 |
Print ISSN 1570-1786 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6255 |
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