Herein, we report a highly efficient and practical method for pyridine‐derived heterobiaryl synthesis through palladium‐catalyzed electrophilic functionalization of easily available pyridine‐derived quaternary phosphonium salts. The nice generality of this reaction was goes beyond arylation, enabling facile incorporation of diverse carbon‐based fragments, including alkenyl, alkynyl, and also allyl
The electrophilic behavior of the reactive entity in the phtosubstitution of benzenes with 2-iodopyridine was found to be ascribable to the intermediary 2-pyridyl cation, rather than to the electrophilic 2-pyridyl radical.
Synthesis of Vinylphenylpyridine and Living Anionic Polymerization
申请人:Lee Jae-Suk
公开号:US20090105416A1
公开(公告)日:2009-04-23
Provided are a vinyl-biphenylpyridine monomer and a polymer thereof. More particularly, the present invention provides a vinyl-biphenylpyridine monomer having a side chain of pyridine or phenylpyridine as a functional group, a homopolymer of which molecular weight and molecular weight distribution are controlled using the monomer, and a block copolymer of which molecular structure and molecular weight are controlled to facilitate synthesis of an organic metal complex. Accordingly, the present invention provides a vinyl-biphenylpyridine monomer and a polymer thereof which are effectively used as nano and optical functional materials.
Novel pyridine compounds, process for their preparation and compositions containing them
申请人:Pal Manojit
公开号:US20060084644A1
公开(公告)日:2006-04-20
The present invention provides new heterocyclic compounds, particularly substituted pyridines, methods and compositions for making and using these heterocyclic compounds, and methods for treating a variety of diseases and disease states, including atherosclerosis, arthritis, restenosis, diabetic nephropathy, or dyslipidemia, or disease states mediated by the low expression of Perlecan.
INHIBITORS OF 11-BETA HYDROXYSTEROID DEHYDROGENASE TYPE I
申请人:Li James J.
公开号:US20110077395A1
公开(公告)日:2011-03-31
Novel compounds are provided which are 11-beta-hydroxysteroid dehydrogenase type I inhibitors. 11-beta-hydroxysteroid dehydrogenase type I inhibitors are useful in treating, preventing, or slowing the progression of diseases requiring 11-beta-hydroxysteroid dehydrogenase type I inhibitor therapy. These novel compounds have the structure:
or stereoisomers or prodrugs or pharmaceutically acceptable salts thereof, wherein G, L, Q, Z, R
6
, R
7
, and R
8
are defined herein.