申请人:Chen Guang-Pei
公开号:US20060035941A1
公开(公告)日:2006-02-16
The present invention provides calcium salts of indole derived statins of the formula (IA) wherein R
1
, is alkyl, cycloalkyl or aralkyl; R
2
, R
3
and R
4
are independently hydrogen, halogen or alkyl; R
5
and R
6
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 R
1
, is isopropyl, R
2
is fluorine and R
3
, R
4
, R
5
and R
6
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、烷氧基或芳基氧基;并且在3位的羟基以R构型存在,在5位的羟基以S构型存在;或其对映体;或其水合物;由本发明的方法获得。更具体地,本发明提供公式(IA)的钙盐,其中R1为异丙基,R2为氟,R3、R4、R5和R6为氢,本文称之为氟伐他汀钙,以高度晶体形式存在。此外,本发明还涉及制备晶体氟伐他汀钙的方法,以及包含该晶体形式的药物组合物。