Transfer hydrogenation reactions catalyzed by chiral half-sandwich Ruthenium complexes derived from Proline
作者:ARUN KUMAR PANDIA KUMAR、ASHOKA G SAMUELSON
DOI:10.1007/s12039-016-1151-8
日期:2016.9
Chiral ruthenium half-sandwich complexes were prepared using a chelating diamine made from proline with a phenyl, ethyl, or benzyl group, instead of hydrogen on one of the coordinating arms. Three of these complexes were obtained as single diastereoisomers and their configuration identified by X-ray crystallography. The complexes are recyclable catalysts for the reduction of ketones to chiral alcohols
Substituted pyridines having antiangiogenic activity
申请人:——
公开号:US20040014744A1
公开(公告)日:2004-01-22
Compounds having the formula
1
are angiogenesis inhibitors. Also disclosed are compositions containing the compounds, methods of making the compounds, and methods of treatment using the compounds.
This invention relates to the compounds of formula (I) shown below. Each variable in formula (I) is defined in the specification. These compounds can be used to treat hepatitis C virus infection.
Compounds having the formula
1
are angiogenesis inhibitors. Also disclosed are compositions containing the compounds, methods of making the compounds, and methods of treatment using the compounds.
6-dimethylbenzenesulphonyl (Mds) group for the protectiono of the guanidinofunction, which is readily removed with trifluoroacetic acid–thioanisole but is resistant to hydrogenolysis or treatment with dilute hydrogen chloride, can be used in the solution synthesis of arginine-containing peptides; this protectinggroup was effectively used in the synthesis of substance P and two LH–RH analogues.