The present invention provides a process for preparing novel intermediates of Formula wherein, R
1
can be hydrogen, C
1
-C
4
alkyl, halogen, nitro, hydroxy, or C
1
-C
4
alkoxy; R
x
can be selected from hydrophobic residue of HMG-CoA reductase inhibitors; which can be effectively used for the preparation of HMG-CoA reductase inhibitors such as rosuvastatin and pharmaceutically acceptable salts thereof.
本发明提供了一种制备新型中间体的过程,其中,R1可以是氢、C1-C4烷基、卤素、硝基、羟基或C1-C4烷氧基;Rx可以选择自
HMG-CoA还原酶
抑制剂的疏
水残基;可以有效用于制备
HMG-CoA还原酶
抑制剂,如罗伐司汀及其药用可接受的盐。