1402569-27-0Relevant articles and documents
Preparation of Optically Pure ?-Amino Acid Type Active Pharmaceutical Ingredients and Intermediates thereof
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Paragraph 0050; 0061; 0062, (2013/07/25)
The present invention relates to the preparation of optically resolved chiral compounds of β-amino acid type active pharmaceutical ingredients (API), more specifically to β-aminobutyryl substituted compounds and especially β-aminobutyryl compounds having γ-bound aryl groups. The present invention more particularly relates to the preparation of enantiomerically enriched chiral compounds useful as intermediates for the preparation of anti-diabetic agents, preferably sitagliptin.
PREPARATION OF OPTICALLY PURE ?-AMINO ACID TYPE ACTIVE PHARMACEUTICAL INGREDIENTS AND INTERMEDIATES THEREOF
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Page/Page column 23; 24, (2013/07/25)
The present invention relates to the preparation of optically resolved chiral compounds of β-amino acid type active pharmaceutical ingredients (API), more specifically to β-aminobutyryl substituted compounds and especially β-aminobutyryl compounds having γ-bound aryl groups. The present invention more particularly relates to the preparation of enantiomerically enriched chiral compounds useful as intermediates for the preparation of anti-diabetic agents, preferably sitagliptin.
Basic CuCO3/ligand as a new catalyst for 'on water' borylation of Michael acceptors, alkenes and alkynes: Application to the efficient asymmetric synthesis of β-alcohol type sitagliptin side chain
Stavber, Gaj,Casar, Zdenko
, p. 159 - 165 (2013/05/09)
The efficient 'on water' β-borylation using bis(pinacolato)diboron agent was achieved with a newly developed catalytic system based on basic copper carbonate and various ligands. The catalytic system was used for β-borylation of various Michael acceptors,
?-BORATION OF ALKENE AND ALKYNE INTERMEDIATES
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Page/Page column 45, (2013/10/22)
The present invention relates to the field of organic chemistry, and in particular to the preparation of β-borated compounds. These β-borated compounds can be used as intermediates in the synthesis pharmaceutically active agents such as sitagliptin.
PREPARATION OF SITAGLIPTIN INTERMEDIATES
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, (2012/10/18)
The invention relates to the preparation of chiral compounds, in particular to the preparation of chiral compounds which may be used as intermediates for the preparation of anti-diabetic agents, preferably sitagliptin.
Preparation of sitagliptin intermediates
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, (2012/10/18)
The invention relates to the preparation of chiral compounds, in particular to the preparation of chiral compounds which may be used as intermediates for the preparation of anti-diabetic agents, preferably sitagliptin.