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    • 4. 发明授权
    • Alpha 1a adrenergic receptor antagonists
    • Alpha 1a肾上腺素能受体拮抗剂
    • US06320049B1
    • 2001-11-20
    • US09563203
    • 2000-05-02
    • Daniel R. SidlerRobert D. LarsenWenjie Li
    • Daniel R. SidlerRobert D. LarsenWenjie Li
    • C07D23922
    • C07D239/22C07D401/04C07D401/14
    • This invention relates to crystalline pharmaceutically acceptable salts of an alpha 1a adrenergic receptor antagonist, Compound A, which are useful in the treatment of benign prostatic hyperplasia. Pharmaceutical compositions employing the crystalline salts, and processes for making and using the crystalline salts and pharmaceutical compositions of Compound A are also disclosed. This invention further relates to a process for obtaining enantiomerically pure intermediate useful for the synthesis of end product alpha 1a adrenergic receptor antagonists. The end product compounds are useful for the treatment of benign prostatic hyperplasia and for relaxing lower urinary tract tissue. The invention also relates to a process for preparing a class of dihydropyrimidinone compounds of which Compound A is a member, wherein the process involves deprotonating a dihydropyrimidinone compound and then coupling the deprotonated derivative with a primary amine.
    • 本发明涉及可用于治疗良性前列腺增生的α1α肾上腺素能受体拮抗剂,化合物A的结晶药学上可接受的盐。 还公开了使用结晶盐的药物组合物,以及制备和使用化合物A的结晶盐和药物组合物的方法。 本发明还涉及用于获得可用于合成终产物α1α肾上腺素能受体拮抗剂的对映体纯中间体的方法。 最终产品化合物可用于治疗良性前列腺增生和放松下尿路组织。 本发明还涉及一种制备其中化合物A为成员的一类二氢嘧啶酮化合物的方法,其中该方法包括使二氢嘧啶酮化合物去质子化,然后将去质子化衍生物与伯胺偶联。
    • 5. 发明授权
    • Process for preparing &bgr;-hydroxycarbamates and their conversion to oxazolidinones
    • 制备β-羟基氨基甲酸酯及其转化为恶唑烷酮的方法
    • US06372911B1
    • 2002-04-16
    • US09482799
    • 2000-01-13
    • Nancy BartaRobert D. LarsenDaniel R. SidlerSteven A. Weissman
    • Nancy BartaRobert D. LarsenDaniel R. SidlerSteven A. Weissman
    • C07D41312
    • C07D413/12C07C271/16C07D211/18C07D263/38
    • A process for preparing a &bgr;-hydroxy carbamate product is disclosed. The process comprises reacting an olefin compound containing at least one carbon-carbon double bond with a carbamate in an aqueous solvent and in the presence of a base, an osmium catalyst, a co-oxidant selected from a halohydantoin, a haloisocyanuric acid, and an alkali metal salt of a haloisocyanuric acid, and optionally an asymmetric ligand, to form a reaction mixture containing the &bgr;-hydroxy carbamate product. The process optionally further comprises treating the &bgr;-hydroxy carbamate product with additional base to form an oxazolidinone. The oxazolidinones are useful as chiral auxiliary agents and as intermediates for the formation of pharmaceutically active substances such as alpha 1 a adrenergic receptor antagonists. A process for preparing nitrogen-functionalized derivatives of the oxazolidinones is also disclosed.
    • 公开了一种制备β-羟基氨基甲酸酯产物的方法。 该方法包括使含有至少一个碳 - 碳双键的烯烃化合物与氨基甲酸酯在水溶剂中反应,并在碱,锇催化剂,选自卤代乙内酰脲,卤代异氰脲酸和 卤代异氰尿酸的碱金属盐和任选的不对称配体,以形成含有β-羟基氨基甲酸酯产物的反应混合物。 该方法任选地还包括用另外的碱处理β-羟基氨基甲酸酯产物以形成恶唑烷酮。 恶唑烷酮可用作手性助剂,也可用作形成药物活性物质如α1肾上腺素能受体拮抗剂的中间体。 还公开了制备恶唑烷酮的氮官能化衍生物的方法。