摘要:
The present invention relates to optically active dihydroxy hexanoate derivatives, boronate esters of formula (IIa) which are useful intermediates for the synthesis of HMG-CoA enzyme inhibitors like atorvastatin, cerivastatin, rosuvastatin, pitavastatin, fluvastatin. Ar = unsubstituted or substituted aryl or heteroaryl; R3 = alkyl from 1 to 8 carbons, aryl or aralkyl; R4 = O, OH, CN or a halogen and a =single bond or a double bond.
摘要:
The present invention relates to a novel process for the preparation of the HMG-CoA reductase inhibitor, fluvastatin, more specifically to a process for the preparation of amorphous form of fluvastatin sodium.