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    • 3. 发明申请
    • Calcium salts of indole derived statins
    • 吲哚衍生的他汀类钙盐
    • US20060035941A1
    • 2006-02-16
    • US10517874
    • 2003-06-12
    • Guang-Pei ChenPrasad KapaPaul Sutton
    • Guang-Pei ChenPrasad KapaPaul Sutton
    • A61K31/404C07D209/04
    • C07D209/24
    • The present invention provides calcium salts of indole derived statins of the formula (IA) wherein R1, is alkyl, cycloalkyl or aralkyl; R2, R3 and R4 are independently hydrogen, halogen or alkyl; R5 and R6 are independently hydrogen, halogen, alkyl, cycloalkyl, aralkyl, alkoxy or aralkoxy; and the hydroxyl group at the 3position is in the R-configuration and at the 5position in the S-configuration; or an enantiomer thereof; or a hydrate thereof; as obtainable by the methods of the present invention. More specifically, the invention provides a calcium salt of formula (IA) wherein R1, is isopropyl, R2 is fluorine and R3, R4, R5 and R6 are hydrogen, designated herein as Fluvastatin calcium, in a highly crystalline form. Furthermore, the present invention is directed to methods for the preparation of the crystalline Fluvastatin calcium, and to pharmaceutical compositions comprising the crystalline form.
    • 本发明提供式(IA)的吲哚衍生的他汀类的钙盐,其中R 1是烷基,环烷基或芳烷基; R 2,R 3和R 4独立地是氢,卤素或烷基; R 5和R 6独立地是氢,卤素,烷基,环烷基,芳烷基,烷氧基或芳烷氧基; 并且3位上的羟基处于R-构型,在5-构型中为5位; 或其对映体; 或其水合物; 如通过本发明的方法可获得的。 更具体地,本发明提供式(IA)的钙盐,其中R 1是异丙基,R 2是氟和R 3, R 4,R 5和R 6是高度结晶形式的本文称为氟伐他汀钙的氢。 此外,本发明涉及制备结晶氟伐他汀钙的方法以及包含结晶形式的药物组合物。
    • 9. 发明授权
    • Process for preparing
1,1'-[1,4-phenylenebis-(methylene)]-bis-1,4,8,11-tetraazacyclotetradecan
e
    • 制备1,1' - [1,4-亚苯基双(亚甲基)] - 双-1,4,8,11-四氮杂环十四烷的方法
    • US5606053A
    • 1997-02-25
    • US434142
    • 1995-05-02
    • Mahavir PrashadPrasad Kapa
    • Mahavir PrashadPrasad Kapa
    • C07C311/18C07D257/02C07D255/00C07D255/02
    • C07C311/18C07D257/02
    • An improved process for preparing 1,1'-[1,4-phenylenebis-(methylene)]-bis-1,4,8,11-tetraazacyclotetradecane comprising the selective functionalization of an acyclic tetraamine to obtain an acyclic ditosyl intermediate and an acyclic tritosyl intermediate in a first step, the independent dimerization/tosylation of the ditosyl intermediate and dimerization of the tritosyl intermediate to obtain a 1,4-phenylenebis-methylene bridged hexatosyl acyclic precursor in a second step, the cyclization of said precursor to obtain a hexatosyl cyclam dimer in a third step, and the detosylation of said cyclam dimer in a fourth step followed by basification to obtain the desired 1,1'-[1,4-phenylenebis-(methylene)]-bis-1,4,8,11-tetraazacyclotetradecane.
    • 制备1,1' - [1,4-亚苯基双(亚甲基)] - 双-1,4,8,11-四氮杂环十四烷的改进方法,其包括无环四胺的选择性官能化以获得无环二硫代基中间体和非环状 在第一步中的三羟甲基中间体,二硫代基中间体的独立二聚化/甲苯磺酰化和三乙基中间体的二聚作用,以在第二步中获得1,4-亚苯基双 - 亚甲基桥连的六碳酰基非环状前体,所述前体环化以获得六 第三步中的环酰胺二聚体和第四步骤中所述环酰二聚体的去甲苯基化,接着进行碱化,得到所需的1,1' - [1,4-亚苯基双(亚甲基)] - 双-1,4,8, 11-四氮杂环十四烷。