Provided are compounds of formula I that are useful in the treatment and/or prevention of diseases mediated by deficient levels of glucokinase activity, such as diabetes meilitus. Also provided are methods of treating or preventing diseases and disorders characterized by underactivity of glucokinase or which can be treated by activating glucokinase.
Insertion of Isocyanides across the Pd−C Bond in Alkyl or Aryl Palladium(II) Complexes Bearing Mixed Nitrogen−Sulfur and Nitrogen−Phosphorus Ancillary Ligands. The Mechanism of Reaction
and arylpalladium complexes bearing pyridyl−thioethers (NS−R) and quinoline−phosphines (NP) as ancillary ligands when reacting with 2,6-dimethyl isocyanide (DIC) and tosylmethyl isocyanide (TosMIC) was undertaken. In these reactions some differently substituted isocyanides insert into the palladium−carbon bond of alkyl and aryl complexes bearing mixed (NS or NP) ligands. The reactions were carried out
详尽研究了与2,6-二甲基异氰化物(DIC)和甲苯磺酰基甲基异氰化物反应时带有吡啶基-硫醚(NS-R)和喹啉-膦(NP)作为辅助配体的烷基和芳基钯配合物的动力学和机理(TosMIC)进行了。在这些反应中,一些不同取代的异氰酸酯插入带有混合(NS或NP)配体的烷基和芳基络合物的钯碳键中。反应是在等分子条件下进行的,因为这种限制性方法可以确定与异氰酸酯插入攻击有关的速率常数。还考虑了在非化学计量条件下进行的反应,并对反应产物进行了表征。通常观察到插入的钯(II)的双取代的异氰化物卤化物衍生物的形成。在特定情况下,检测到酰亚胺基二聚体的形成。单插入[Pd(NSt -Bu)(C(Tol)NR 2)I](NS t -Bu = 2-(叔丁基硫甲基)吡啶)和二聚体[Pd(CNR 2)(C(NR 2)Me)Cl] 2据报道(R 2= 2,6-Me 2 C 6 H 3)。
Synthesis, characterization and X-ray structural determination of palladium(0)–olefin complexes containing pyridin-thioethers as ancillary ligands. Equilibria and rates of olefin and ligand exchange
The synthesis of Pd(0)–olefin complexes with pyridin-thioether ligands R′NSR is reported. X-raystructuredeterminations of selected species are described. The dynamic behavior was studied by variable-temperature 1H-NMR spectrometry. Equilibrium constants for olefin and chelate ligand exchange were determined by UV–vis spectrophotometry in chloroform at 25°C. The following metal–olefin stability order
Pyridin-2-YL-Amino-1, 2, 4-Thiadiazole Derivatives as Glucokinase Activators for the Treatment of Diabetes Mellitus
申请人:Aicher Thomas Daniel
公开号:US20100204240A1
公开(公告)日:2010-08-12
Provided are compounds of Formula (I): wherein R
2
, R
3
, R
13
, L and D
2
are as defined in the specification, which are useful in the treatment and/or prevention of diseases or disorders mediated by deficient levels of glucokinase activity or which can be treated by activating glucokinase including, but not limited to, diabetes mellitus, impaired glucose tolerance, IFG (impaired fasting glucose) and IFG (impaired fasting glycemia), as well as other diseases and disorders such as those discussed herein.
Pyridin-2YL-Amino-1, 2, 4-Thiadiazole Derivatives as Glucokinase Activators for the Treatment of Diabetes Mellitus
申请人:AICHER Thomas Daniel
公开号:US20120277242A1
公开(公告)日:2012-11-01
Provided are compounds of Formula (I): wherein R
2
, R
3
, R
13
, L and D
2
are as defined in the specification, which are useful in the treatment and/or prevention of diseases or disorders mediated by deficient levels of glucokinase activity or which can be treated by activating glucokinase including, but not limited to, diabetes mellitus, impaired glucose tolerance, IFG (impaired fasting glucose) and IFG (impaired fasting glycemia), as well as other diseases and disorders such as those discussed herein.