METHOD FOR PRODUCING OPTICALLY ACTIVE 1,2-BIS(DIALKYLPHOSPHINO)BENZENE DERIVATIVE
申请人:Tamura Ken
公开号:US20130172597A1
公开(公告)日:2013-07-04
An industrially advantageous method for producing an optically active 1,2-bis(dialkylphosphino)benzene derivative of the present invention is provided. The method is characterized in that a phosphine-borane compound represented by the following general formula (1) is subjected to a deboronation reaction, followed by lithiation, then the reaction product is subjected to reaction with an alkyldihalogenophosphine represented by R
a
PX′
2
, and thereafter the reaction product is subjected to reaction with a Grignard reagent represented by R
b
MgX″ to produce an optically active 1,2-bis(dialkylphosphino)benzene derivative (A). R
1
and R
2
respectively represent an alkyl group having 1 to 8 carbon atoms, and the number of carbon atoms is different between R
1
and R
2
. R
a
is either R
1
or R
2
and R
b
is the other of R
1
and R
2
. X, X′, and X″ each represent a halogen atom.
BENZOXAZINONE AMIDES AS MINERALOCORTICOID RECEPTOR MODULATORS
申请人:ASTRAZENECA AB
公开号:US20150376170A1
公开(公告)日:2015-12-31
Disclosed are certain derivatives of benzoxazinone amides of formula (I), or pharmaceutically acceptable salts thereof,
that act as mineralocorticoid (MR) receptor modulators that may reduce oxidative stress in endothelium and hence improve vascular function, to methods for their potential therapeutic use, to pharmaceutical compositions containing them and to processes for preparing such compounds.
[EN] PROCESS FOR PREPARING SUBSTITUTED TETRACYCLIC HETEROCYCLE COMPOUNDS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS HÉTÉROCYCLIQUES TÉTRACYCLIQUES SUBSTITUÉS
申请人:MERCK SHARP & DOHME
公开号:WO2016196932A1
公开(公告)日:2016-12-08
The present invention is directed to processes for preparing Substituted Tetracyclic Heterocycle Compounds of formula (I): (I) which may be useful as HCV NS5A inhibitors. The present invention is also directed to compounds that may be useful as synthetic intermediates and catalysts in the processes of the invention.
[EN] METHOD FOR PRODUCING AMIDINE DERIVATIVES<br/>[FR] PROCÉDÉ DE PRODUCTION DE DÉRIVÉS D'AMIDINE
申请人:BIOCRYST PHARM INC
公开号:WO2016029216A2
公开(公告)日:2016-02-25
The invention provides methods and intermediates useful in the synthesis of a compound of formula (I): or a pharmaceutically acceptable salt, solvate, ester or prodrug thereof; wherein the variables are as defined herein.
METHOD FOR PRODUCING ALPHA, BETA-UNSATURATED CARBOXYLATE
申请人:SEKISUI CHEMICAL CO., LTD.
公开号:EP3778542A1
公开(公告)日:2021-02-17
A method for producing an α,β-unsaturated carboxylic acid salt, including: a step (1) of reacting a transition metal complex, an alkene and carbon dioxide to obtain a metal lactone compound represented by formula (1):
wherein: M is a transition metal, each L is independently a monodentate ligand, or two L together form a bidentate ligand; and a step (2) of allowing a base to act on the metal lactone compound, wherein a molar amount (A) of the carbon dioxide per mol of the transition metal complex in the step (1) is 0.1 to 10 mol.