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    • 4. 发明申请
    • OPTICALLY PURE CALPAIN INHIBITOR COMPOUNDS
    • 光学纯化学抑制剂化合物
    • WO1995000535A1
    • 1995-01-05
    • PCT/US1994006497
    • 1994-06-09
    • ALKERMES, INCORPORATEDHARBESON, Scott, L.STRAUB, Julie, Ann
    • ALKERMES, INCORPORATED
    • C07K05/02
    • C07D295/215A61K38/00C07C271/22C07C275/16C07C317/40C07K5/0202
    • Optically pure alpha -ketoamide compounds, and use therefor in treating neurodegenerative pathologies having enhanced Calpain activity, are disclosed. These compounds comprise optically pure alpha -ketoamides, and physiologically acceptable salts thereof, wherein the alpha -ketoamide contains an amino acid isomer which has an L-configuration about the chiral center which is structurally located in the alpha position to the ketone of the alpha -ketoamide, and wherein the amide functionality of the alpha -ketoamide portion of the compound's molecule is derived from an amine of an amino acid or an amine substituted with a sulfone functionality. The method of treating a human neurodegenerative pathology, having enhanced Calpain activity, with a Calpain inhibitor composition while reducing undesirable inhibition of other cysteine proteases andother side effects associated with the racemic Calpain inhibitor composition includes administering an optically pure L-isomer of an alpha -ketoamide compound, wherein the L-isomer is substantially free of its D-isomer. The method of forming an optically pure L- alpha -ketoamide includes mixing an L- beta -amino- alpha -hydroxyamide in a solution containing a free radical catalyst and then mixing an oxydizing agent into said solution under conditions sufficient to form said optically pure L- alpha -ketoamide.
    • 公开了光学纯的α-酮酰胺化合物,并用于治疗具有增强的钙蛋白酶活性的神经退行性病变。 这些化合物包括光学纯的α-酮酰胺及其生理上可接受的盐,其中α-酮酰胺含有氨基酸异构体,该氨基酸异构体在手性中心具有L-构型,其结构上位于α位酮的α位置, 酮酰胺,并且其中化合物分子的α-酮酰胺部分的酰胺官能度衍生自氨基酸的胺或被砜官能团取代的胺。 使用钙蛋白酶抑制剂组合物治疗具有增强的钙蛋白酶活性的人类神经变性病理学方法同时减少其他半胱氨酸蛋白酶的不期望的抑制和与外消旋钙蛋白酶抑制剂组合物相关的其它副作用的方法包括给予α-酮酰胺的光学纯的L-异构体 化合物,其中L-异构体基本上不含其D-异构体。 形成光学纯的L-α-酮酰胺的方法包括在含有自由基催化剂的溶液中混合L-β-氨基-α-羟基酰胺,然后在足以形成所述光学纯L的条件下将氧化剂混合到所述溶液中 α-酮酰胺。