PROCESS FOR PREPARING CRYSTALLINE FORM I OF ATORVASTATIN HEMI CALCIUM SALT

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专利权人:

发明人:

GIRISH DIXIT,ANIL SHAHAJI KHILE,NITIN SHARADCHANDRA PRADHAN

申请号：

IN667/CHE/2009

公开号：

IN2009CH00667A

申请日:

2009.03.25

申请国别(地区):

IN

年份:

2012

代理人:

摘要：

Provided herein is an improved process for preparing highly pure atorvastatin hemicalcium salt crystalline Form 1 characterized by an X-ray powder diffraction pattern having peaks expressed as 2-theta angle positions at about 5.98, 9.0, 9.34, 10.13, 10.41, 11.70, 12.04, 15.06, 16.89, 18.16, 19.31, 19.72,21.20,21.46,21.77,22.16,22.55,23.16, 23.56,24.26,24,50,26.19,27.32, 28.14,29.01 ±0.2 degrees.

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