Title:
ピペラジン化合物およびその塩酸塩の調製プロセス
Document Type and Number:
Japanese Patent JP5744751
Kind Code:
B2
Abstract:
The invention relates to a new process for the preparation of compounds of general formula (I) wherein R1 and R2 represent independently hydrogen or C1-6 alkyl with straight or branched chain optionally substituted with aryl group, or C2-7 alkenyl containing 1-3 double bonds, or monocyclic, bicyclic or tricyclic aryl optionally substituted with one or more C1-6 alkoxy, trifluoro-C1-6 alkoxy, C1-6-alkoxycarbonil, C1-6alkanoyl, aryl, C1-6 alkylthio, halogen or cyano, or optionally substituted monocyclic, bicyclic or tricyclic C3-14 cycloalkyl group, R1 and R2 together with the adjacent nitrogen form a saturated or unsaturated optionally substituted monocyclic or bicyclic heterocyclic ring which may contain further heteroatoms selected from oxygen, nitrogen, or sulphur atoms and hydrochloric acid salts and/or hydrates and/or solvates thereof, by dissolving or suspending trans 4-{2-[4-(2,3-dichlorophenyl)-piperazine-1-il]-ethyl}-cyclohexylamine of formula (III) or a salt or a hydrate or a solvate thereof in an inert solvent in the presence a base then adding a carbonic acid derivative of general formula (VI) wherein R is alkyl with C 1-6 straight or branched chain or C1-2 fully halogenated alkyl, Z is —O—R or —X, wherein R is as described above, X is halogen, and reacting the compound of general formula (IV) obtained wherein R is as described above, in situ or, optionally in isolated state with an amine of general formula (V) wherein R1 and R2 are as described above to obtain the compound of general formula (I) and then optionally forming the hydrochloride salts and/or hydrates and/or solvates thereof.
Inventors:
Cheebra, Las Tsuru
Juustus, Berlin
Again, chongol, eva
Seboku, Ferenc
Garambos, Janos
Nogrady, Catalin
Juustus, Berlin
Again, chongol, eva
Seboku, Ferenc
Garambos, Janos
Nogrady, Catalin
Application Number:
JP2011541614A
Publication Date:
July 08, 2015
Filing Date:
December 18, 2009
Export Citation:
Assignee:
Richter Gedeon Nirvanoshan Miquedeles Vental Shashag
International Classes:
C07D295/12
Domestic Patent References:
| JP2007501215A |
Foreign References:
| WO2008142461A1 |
Attorney, Agent or Firm:
Haruo Hamada
Park Park
Nishiguchi Katsu
Akatsu Teiji
Ryoko Saito
Park Park
Nishiguchi Katsu
Akatsu Teiji
Ryoko Saito
Previous Patent: 多成分材料を形成するためのプロセス及びそのための装置
Next Patent: METHOD OF CONTROLLING AIR FUEL RATIO OF INTERNAL COMBUSTION ENGINE
Next Patent: METHOD OF CONTROLLING AIR FUEL RATIO OF INTERNAL COMBUSTION ENGINE