Provision of a superior URAT1 activity inhibitor effective for the treatment and the like of a pathology involving uric acid, such as hyperuricemia, gouty tophus, acute gouty arthritis, chronic gouty arthritis, gouty kidney, urinary lithiasis, renal dysfunction, coronary heart disease, ischemic cardiac diseases and the like.
A URAT1 activity inhibitor containing a compound represented by the following formula [1] or a pharmaceutically acceptable salt thereof, or a solvate thereof as an active ingredient:
wherein each symbol is as defined in the specification.
Kinetic Resolution of Chiral α-Olefins Using Optically Active <i>ansa-</i>Zirconocene Polymerization Catalysts
作者:Cliff R. Baar、Christopher J. Levy、Endy Y.-J. Min、Lawrence M. Henling、Michael W. Day、John E. Bercaw
DOI:10.1021/ja040021j
日期:2004.7.1
and/or 4-positions. Due to the optically pure nature of these single site catalysts, they effect kineticresolution of racemic monomers: the polymeric product is enriched with the faster reacting enantiomer, while recovered monomer is enriched with the slower reacting enantiomer. The two components are easily separated. For most olefins surveyed, a partialkineticresolution was achieved (s = k(faster)/k(slower)
Liquid crystal dimers derived from naturally occurring chiral moieties: synthesis and characterization
作者:Channabasaveshwar V. Yelamaggad、Govindaswamy Shanker
DOI:10.1016/j.tet.2008.02.013
日期:2008.4
from natural α-aminoacids (l-valine, l-leucine, and l-isoleucine) have been utilized to prepare three different series of nonsymmetric liquid crystal dimers. Tolane (diphenylacetylene), which is known to possess several promising structural features, has been chosen as the other mesogenic segment to covalently tether with cholesterol through a flexible spacer. In each series, the terminal α-chloro ester
Synthesis of new polymerizable liquid-crystal molecules
作者:Pascal Bezou、Annie Pacreau、Jean-Pierre Vairon
DOI:10.1016/0040-4039(95)00412-6
日期:1995.4
On the way to get a comparison between different side-chain liquid-crystalpolymers bearing the same lateral mesogenic group, in order to show the influence of the nature of the polymerbackbone on their thermal behaviors, we present here the synthesis of new liquid-crystal acrylate and methacrylate monomers.
Stereoselective Synthesis of Chiral 4-(1-Chloroalkyl)-β-Lactams Starting from Amino Acids and Their Transformation into Functionalized Chiral Azetidines and Pyrrolidines
作者:Stijn Dekeukeleire、Matthias D’hooghe、Karl W. Törnroos、Norbert De Kimpe
DOI:10.1021/jo101220q
日期:2010.9.3
α-chlorination procedures. The latter aldehydes proved to be useful starting materials for the stereoselective Staudinger synthesis of (3S,4S)-4-[(1S)-1-chloroalkyl]azetidin-2-ones in high diastereomeric ratios and good overall yields, which were used as chiral building blocks for the preparation of a number of azetidines and pyrrolidines.