[EN] CRYSTALLINE ORGANIC ACID SALT OF AMLODIPINE<br/>[FR] SEL ACIDE ORGANIQUE CRISTALLIN D'AMLODIPINE
申请人:CJ CORP
公开号:WO2004026834A1
公开(公告)日:2004-04-01
A novel crystalline organic acid salt of amlodipine having improved physiochemical properties, a preparation method thereof and a pharmaceutical composition comprising the same are provided.
Process for making amlodipine, derivatives therof, and precursors therefor
申请人:——
公开号:US20020143046A1
公开(公告)日:2002-10-03
Amlodipine and related analogues thereof are prepared by the following general reaction scheme:
1
R
1
and R
2
each independently represent a C
1
-C
4
alkyl group. The process provides for the formation of compounds of formula (1) in good yield and purity. Further, the compounds of formula (1) can be used as calcium channel blockers or as reference standards or reference markers for checking the purity of amlodipine.
[EN] ORGANIC ACID SALT OF AMLODIPINE<br/>[FR] SEL D'ACIDE ORGANIQUE D'AMLODIPINE
申请人:CJ CORP
公开号:WO2004018426A1
公开(公告)日:2004-03-04
Disclosed are a novel organic acid salt of amlodipine, its preparation method, and a pharmaceutical composition containing the same as a therapeutically active ingredient.
A process for making amlodipine maleate comprises reacting amlodipine or an acid addition salt thereof with maleic acid under an acidic environment to form an amlodipine maleate product. The process allows for the formation of amlodipine maleate substantially free from amlodipine aspartate.
A novel crystalline organic acid salt of amlodipine having improved physiochemical properties, a preparation method thereof and a pharmaceutical composition comprising the same are provided.