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    • 7. 发明授权
    • Atorvastatin calcium in a pharmaceutical form composition thereof and pharmaceutical formulation comprising atorvastatin calcium
    • 阿托伐他汀钙,其药物形式组合物和包含阿托伐他汀钙的药物制剂
    • US07030151B2
    • 2006-04-18
    • US10471906
    • 2002-03-13
    • Janez Ker{hacek over (c)}Mateja SalobirSa{hacek over (s)}a Bavec
    • Janez Ker{hacek over (c)}Mateja SalobirSa{hacek over (s)}a Bavec
    • A61K209/04C07D31/4035
    • A61K9/1611A61K9/1617A61K9/1652A61K9/2077A61K31/40A61K47/02A61K47/18
    • Atorvastatin calcium, the substance known by the chemical name (R—(R*,R*))-2-(4-fluorophenyl)-β, δ-dihydroxy-5-(1-methylethyl)-3-phenyl-((phenylamino)carbonyl)-1H-pyrrole-1-heptanoic acid hemi calcium salt is known as HMG-CoA reductase inhibitor and is used as an antihypercholesterolemic agent. Atorvastatin in the pharmaceutical compositions available in the market, is usually prepared as its calcium salt since it enables atorvastatin to be conveniently formulated in the pharmaceutical formulations, for example, in tablets, capsules, powders and the like for oral administration. Atorvastatin calcium can exist in an amorphous form or in one of the at least four known crystalline forms (Form I, Form II, Form III and Form IV). Atorvastatin calcium is the substance which is sparingly soluble in water, with pKa 4,5, and it has been found that the crystalline forms are less soluble than the amorphous form, which may cause problems in bioavailability of atorvastatin in the body. The present invention solves the problem of providing therapeutic equivalence of atorvastatin pharmaceutical formulation regardless the form (crystalline, amorphous, mixture of both) of atorvastatin calcium used for its preparation.
    • 阿托伐他汀钙,化学名称(R-(R *,R *))-2-(4-氟苯基) - ,δ-二羟基-5-(1-甲基乙基)-3-苯基 - (( 苯基氨基)羰基)-1H-吡咯-1-庚酸半钙盐被称为HMG-CoA还原酶抑制剂,并用作抗高胆固醇血药剂。 市售的药物组合物中的阿托伐他汀通常制备为其钙盐,因为其可使阿托伐他汀方便地配制在药物制剂中,例如用于口服给药的片剂,胶囊,粉末等。 阿托伐他汀钙可以以无定形形式或至少四种已知结晶形式之一(形式I,形式II,形式III和形式IV)存在。 阿托伐他汀钙是微溶于水的物质,其中pKa为4,5,并且已经发现结晶形式比无定形形式更易溶解,这可能导致阿托伐他汀在体内的生物利用度问题。 本发明解决了提供阿托伐他汀药物制剂的治疗等效性的问题,而不管用于其制备的阿托伐他汀钙的形式(两者的结晶,无定形,混合物)。