AN IMPROVED PROCESS FOR THE PREPARATION OF HMG-COA REDUCTASE INHIBITORS VIA CHIRAL DIOL SULFONES INTERMEDIATES

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专利权人:

发明人:

DWIVEDI SHRIPRAKASH DHAR,PATEL DHIMANT JASUBHAI

申请号：

IN481/MUM/2010

公开号：

IN2010MU00481A

申请日:

2010.02.23

申请国别(地区):

IN

年份:

2012

代理人:

摘要：

wherein R4a is alkyl, aryl, arylalkyl or cycloalkyl. Rc is H, alkyl, aryl, alkaoxy, haloalkyl, monohaloalkyloxy, dihaloalkyloxy, Rd is alkyl, aryl, arylalkyl, CF3, halo or N02 and X is O, N-H, N-alkyl or S, Ra and Rb may be same or different and each represents hydrogen, an alkyl group of 1 to 12 carbon atoms, an aryl group of 6 to 12 carbon atoms, or an aralkyl group of 7 to 12 carbon atoms.

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