Intermediates for the preparation of HMG CoA reductase inhibitors and processes for the preparation thereof
申请人:Dwivedi Shriprakash Dhar
公开号:US08759518B2
公开(公告)日:2014-06-24
A compound of Formula (1), is disclosed
wherein P1 and P2 are alcohol protecting groups or 1,3-diol protecting group, R is selected from:
wherein R4a is selected from alkyl, aryl, arylalkyl and cycloalkyl,
Rc is selected from H, alkyl, aryl, alkaoxy, haloalkyl, monohaloalkyloxy, and dihaloalkyloxy,
Rd is selected from alkyl, aryl, arylalkyl, CF3, halo and NO2 and X is selected from O, N—H, N-alkyl and S,
Ra and Rb are 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.
公式(1)的化合物被披露,其中P1和P2是醇保护基或1,3-二醇保护基,R从以下选取:其中R4a从烷基、芳基、芳基烷基和环烷基中选取,Rc从H、烷基、芳基、烷氧基、卤代烷基、单卤代烷氧基和双卤代烷氧基中选取,Rd从烷基、芳基、芳基烷基、CF3、卤素和NO2中选取,X从O、N-H、N-烷基和S中选取,Ra和Rb相同或不同,每个代表1到12个碳原子的烷基、6到12个碳原子的芳基或7到12个碳原子的芳基烷基。