METHOD FOR OBTAINING PIOGLITAZONE AS AN ANTIDIABETIC AGENT
    1.
    发明授权
    METHOD FOR OBTAINING PIOGLITAZONE AS AN ANTIDIABETIC AGENT 有权
    用于生产吡格列酮糖尿病抗MITTTEL

    公开(公告)号:EP1387843B1

    公开(公告)日:2007-02-28

    申请号:EP02734989.3

    申请日:2002-04-25

    申请人: Zentiva, a.s.

    CPC分类号: C07D417/12 Y02P20/55

    摘要: A method for obtaining antidiabetic of formula (I), wherein the method comprises condensing of a 4-derivatized phenol or phenolate of general formula (II), wherein R is an amino group-containing organic residue, selected from the group comprising a residue of the following formula -NHR3, wherein R3 is hydrogen or a protecting group, which is removed before further treatment, and a residue of general formula (A), wherein Rb represents a carboxy group either in the free acid form or in the form of a salt or ester or another functional derivative or the nitrile group CN, and M represents a hydrogen or alkali metal atom, with a pyridine base of general formula (III), wherein Z is a leaving group other than a halogen, wherein, before or after carrying out the condensation, the following operations are carried out: (a) diazotizing the amino group present in organic residue R; (b) converting the diazotised residue R into a derivative of 2-halopropionate or 2-halopropionitrile of formula (B), wherein Rb is as defined above and X is a halogen; (c) cyclizing the derivative of 2-halopropionate or 2-halopropionitrile with thiourea; (d) hydrolysing the resulting imine thus giving pioglitazone of formula (I).

    METHOD FOR THE PREPARATION OF ROSIGLITAZONE
    2.
    发明授权
    METHOD FOR THE PREPARATION OF ROSIGLITAZONE 有权
    用于生产罗格列酮

    公开(公告)号:EP1786808B1

    公开(公告)日:2008-07-09

    申请号:EP05773498.0

    申请日:2005-08-31

    申请人: Zentiva, a.s.

    IPC分类号: C07D417/12

    CPC分类号: C07D417/12

    摘要: A method for the preparation of rosiglitazone of formula (I) by reduction of 5-[4-[2-(N-methyl- N-(2-ρyridyl)amino)ethoxy]-benzylidene]thiazolidine-2,4-dione of formula (II), the reduction being carried out using at least one borohydride of general formula MBH4, wherein M stands for a cation from the group of Na, Li, K, Zn and R4N, and R stands for a C1-C5 alkyl group, under the catalysis of cobalt salts in the presence of at least one complexing agent and a suitable solvent.

    PROCESS FOR THE PREPARATION OF SOLIFENACIN
    4.
    发明公开
    PROCESS FOR THE PREPARATION OF SOLIFENACIN 有权
    制备聚乙二醇的方法

    公开(公告)号:EP2029587A2

    公开(公告)日:2009-03-04

    申请号:EP07764312.0

    申请日:2007-06-21

    申请人: Zentiva, A.S.

    IPC分类号: C07D453/02

    CPC分类号: C07D453/02

    摘要: A process for the preparation of (1 S)-QR)-I -azabicyclo[2.2.2.]oct-3-yl 3,4-dihydro-1-phenyl- 2(1H)-isoquinoline carboxylate by reacting (1S)-alkyl 1-phenyl-1, 2,3, 4-tetrahydro-2- isoquinoline carboxylate with 3-(R)-quinuclidol in an inert solvent, where a primary alkyl ester of the carboxylate whose alkyl length is C1-C4 is used and the reaction is catalyzed by a non-nucleophilic base.

    摘要翻译: (1S)-QR)-1-氮杂二环[2.2.2]辛-3-基-3,4-二氢-1-苯基-2(1H) - 异喹啉羧酸酯的制备方法, - 烷基1-苯基-1,2,3,4-四氢-2-异喹啉羧酸酯与3-(R) - 奎宁醇在惰性溶剂中反应,其中使用烷基长度为C 1 -C 4的羧酸酯的伯烷基酯 并且反应由非亲核碱催化。

    METHOD FOR THE PREPARATION OF ROSIGLITAZONE
    5.
    发明公开
    METHOD FOR THE PREPARATION OF ROSIGLITAZONE 有权
    用于生产罗格列酮

    公开(公告)号:EP1786808A1

    公开(公告)日:2007-05-23

    申请号:EP05773498.0

    申请日:2005-08-31

    申请人: Zentiva, a.s.

    IPC分类号: C07D417/12

    CPC分类号: C07D417/12

    摘要: A method for the preparation of rosiglitazone of formula (I) by reduction of 5-[4-[2-(N-methyl- N-(2-ρyridyl)amino)ethoxy]-benzylidene]thiazolidine-2,4-dione of formula (II), the reduction being carried out using at least one borohydride of general formula MBH4, wherein M stands for a cation from the group of Na, Li, K, Zn and R4N, and R stands for a C1-C5 alkyl group, under the catalysis of cobalt salts in the presence of at least one complexing agent and a suitable solvent.