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    • 1. 发明申请
    • METHOD FOR OBTAINING PIOGLITAZONE AS AN ANTIDIABETIC AGENT
    • 获得PIOGLITAZONE作为抗真菌剂的方法
    • WO02088120B1
    • 2004-02-26
    • PCT/CZ0200024
    • 2002-04-25
    • LECIVA A SHALAMA ALESHEJTMANKOVA LUDMILALUSTIG PETRRICHTER JINDRICHSRSNOVA LUCIEJIRMAN JOSEF
    • HALAMA ALESHEJTMANKOVA LUDMILALUSTIG PETRRICHTER JINDRICHSRSNOVA LUCIEJIRMAN JOSEF
    • A61K31/4427A61P3/10C07D417/12
    • C07D417/12Y02P20/55
    • 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 -NHR , wherein R is hydrogen or a protecting group, which is removed before further treatment, and a residue of general formula (A), wherein R 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 R 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).
    • 一种获得式(I)抗糖尿病的方法,其中所述方法包括将通式(II)的4-衍生化苯酚或酚盐缩合,其中R是含氨基的有机残基,其选自包含 下述式-NHR 3其中R 3是氢或保护基,其在进一步处理之前被除去,和通式(A)的残基,其中R B表示羧基, 游离酸形式或盐或酯或其它官能衍生物或腈基CN形式,M表示氢或碱金属原子,与通式(III)的吡啶碱形成,其中Z为离去基团 其中,在进行缩合之前或之后进行以下操作:(a)重氮化存在于有机残基R中的氨基; (b)将重氮化的残基R转化为式(B)的2-卤代丙酸酯或2-卤代丙腈的衍生物,其中R B如上所定义,X是卤素; (c)用硫脲使2-卤代丙酸酯或2-卤代丙腈的衍生物环化; (d)水解所得的亚胺,从而得到式(I)的吡格列酮。