complex catalyzed α-alkylation of arylacetonitriles using secondary alcohols with the liberation of water as the only byproduct is reported. The α-alkylations were efficiently performed at 120 °C under solvent-free conditions with very low (0.1–0.01 mol %) catalyst loading. Various secondary alcohols including cyclic and acyclic alcohols and a wide variety of arylacetonitriles bearing different functional
Amino(oxo) acetic acid protein tyrosine phosphatase inhibitors
申请人:——
公开号:US20020035136A1
公开(公告)日:2002-03-21
Compounds of formula (I)
1
or therapeutically acceptable salts thereof, are protein tyrosine kinase PTP1B inhibitors. Preparation of the compounds, compositions containing the compounds, and treatment of diseases using the compounds are disclosed.
Nickel(II) complex 1 was utilized as a sustainable catalyst for α-alkylation of arylacetonitriles with challenging secondary alcohols. Arylacetonitriles with a wide range of functional groups were tolerated, and various cyclic and acyclic secondary alcohols were utilized to yield a large number of α-alkylated products. The plausible mechanism involves the base-promoted activation of precatalyst 1 to
[EN] AMINO(OXO)ACETIC ACID PROTEIN TYROSINE PHOSPHATASE INHIBITORS<br/>[FR] INHIBITEURS DE PROTEINE TYROSINE PHOSPHATASE D'ACIDE AMINO(OXO)ACETIQUE
申请人:ABBOTT LAB
公开号:WO2002018321A2
公开(公告)日:2002-03-07
Compound of formula (I) or therapeutically acceptable salts thereof, are protein tyrosine kinase PTP1B inhibitors. Preparation of the compounds, compositions containing the compounds, and treatment of diseases using the compounds are disclosed.