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.
本发明提供了公式(IA)的
吲哚衍
生物他汀的
钙盐,其中R1为烷基,环烷基或芳基烷基;R2,R3和R4分别为氢,卤素或烷基;R5和R6分别为氢,卤素,烷基,环烷基,芳基烷基,烷氧基或芳氧基;3位的羟基在R构型,5位的羟基在S构型;或其对映体;或其
水合物;其可通过本发明的方法获得。更具体地,本发明提供了一种高度晶态的
氟伐他汀
钙盐,其中R1为异丙基,R2为
氟,R3,R4,R5和R6为氢。此外,本发明还涉及制备晶态
氟伐他汀
钙盐的方法,以及包含晶态形式的药物组合物。