The first Pd-catalyzed alkylation of (iso)quinolines and arenes is reported. The readily available and bench-stable 2-acylpyridine compounds were used as an alkylation reagent to form the structurally versatile alkylated (iso)quinolines and arenes. The method affords a convenient pathway for the introduction of alkyl groups into organic molecules.
PROCESS FOR PRODUCTION OF BIS-QUATERNARY AMMONIUM SALT, AND NOVEL INTERMEDIATE
申请人:Okamoto Kuniaki
公开号:US20120130107A1
公开(公告)日:2012-05-24
Object To provide a method for producing a bis-quaternary ammonium salt efficiently and a novel synthetic intermediate thereof.
Solution The present invention relates to a method for producing a bis-quaternary ammonium salt represented by a general formula [3] which comprises reacting a disulfonic acid ester represented by a general formula [1] (in the formula, definitions of two R
1
's and T are as described in claim
1
) with a tertiary amine represented by a general formula [2] (in the formula, definitions of R
3
to R
5
are as described in claim
1
), and a disulfonic acid ester represented by a general formula [1′] (in the formula, two R
16
's represent independently a halogen atom or a C1-C3 fluoroalkyl group, and two m's represent independently an integer of 1 to 5).
Enantioselective Reduction of 3-Substituted Quinolines with a Cyclopentadiene-Based Chiral Brønsted Acid
作者:Weijun Tang、Xiaofang Zhao、Jianliang Xiao
DOI:10.1055/s-0036-1589012
日期:2017.7
Abstract Enantioselective reduction of 3-substituted quinolines has been achieved using a cyclopentadiene-based chiralBrønstedacid as catalyst and Hantzsch ester as hydrogen donor, affording the corresponding tetrahydroquinolines in good enantioselectivities. Enantioselective reduction of 3-substituted quinolines has been achieved using a cyclopentadiene-based chiralBrønstedacid as catalyst and
The present invention relates to compounds of formula (I)
and pharmaceutically acceptable salts and solvates thereof, wherein the substituents are as defined herein, compositions containing such compounds and the uses of such compounds for the treatment of various diseases and conditions such as asthma.
In general, the invention relates to compounds useful as ion channel modulators. It has now been found that compounds of this invention, and pharmaceutically acceptable compositions thereof, are useful as inhibitors of voltage-gated sodium channels and/or calcium channels.