With the aim of identifying structurally novel, centrally acting histamine H(3) antagonists, a series of 2-(4-alkylpiperazin-1-yl)quinolines was prepared. Systematic variation of the substituents led to highly potent histamine H(3) antagonists with low polar surface area and appropriate log P for blood-brain barrier penetration.
[EN] PROCESS FOR THE PREPARATION OF A QUINOLINE CARBOXYLIC ACID<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ACIDE QUINOLÉINE CARBOXYLIQUE
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2013072376A1
公开(公告)日:2013-05-23
Process for the preparation of a quinoline carboxylic acid The invention provides a process for the preparation of a carboxylic acid of formula (IV) (which is useful as a safener for herbicides): wherein R1 is hydrogen or chlorine, comprising the steps of: (i) subjecting a compound of formula (V) wherein: R1 is as defined above;and R2 is C1-C18 alkyl;C1-C6 alkoxyC1-C8 alkyl-;optionally substituted phenyl; or optionally substituted benzyl; to hydrolysis under acidic conditions to give a solution of a quinolinium salt;and (ii) addingbase to the solution obtained in step (i) to give the free carboxylic acid (IV). The invention also provides a solid (e.g. particulate) form of one quinoline carboxylic acid compound within formula (IV) defined by R1 being chlorine;and novel intermediates useable in the above process.
PROCESS FOR THE PREPARATION OF A QUINOLINE CARBOXYLIC ACID
申请人:Syngenta Participations AG
公开号:US20140323302A1
公开(公告)日:2014-10-30
The invention provides a process for the preparation of a carboxylic acid of formula (IV) (which is useful as a safener for herbicides): wherein R
1
is hydrogen or chlorine, comprising the steps of: (i) subjecting a compound of formula (V) wherein: R
1
is as defmed above; and R
2
is C
1
-C
18
alkyl; C
1
-C
6
alkoxyC
1
-C
8
alkyl-; optionally substituted phenyl; or optionally substituted benzyl; to hydrolysis under acidic conditions to give a solution of a quinolinium salt; and (ii) addingbase to the solution obtained in step (i) to give the free carboxylic acid (IV). The invention also provides a solid (e.g. particulate) form of one quinoline carboxylic acid compound within formula (IV) defmed by R
1
being chlorine;and novel intermediates useable in the above process.
Modulation of inflammatory and metastatic processes
申请人:Heise Carla
公开号:US20050239825A1
公开(公告)日:2005-10-27
Methods of using compounds having Structure I or the salts or tautomers of the compounds in the treatment of disorders relating to cell adhesion and metastatic processes are presented herein.
Dihydropyridazinones, pyridazinones and related compounds as fungicides
申请人:Rohm and Haas Company
公开号:US05631254A1
公开(公告)日:1997-05-20
This invention relates to substituted dihydropyridazinones, pyridazinones and related compounds, of the formula ##STR1## wherein A, Q, D and R1 are as defined within, compositions containing these compounds and methods of controlling agricultural and mammalian fungal diseases.