PROCESS TO PRODUCE ATORVASTATIN INTERMEDIATES
The invention provides a process for the production of a compound of formula (I), said process comprising reacting a compound of formula (II) with a compound of formula (III) wherein R1 and R2 may be the same or different and are selected from H; a C1-C6 alkyl which may be straight or branched, subs...
Gespeichert in:
Hauptverfasser: | , , |
---|---|
Format: | Patent |
Sprache: | eng ; fre ; ger |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The invention provides a process for the production of a compound of formula (I), said process comprising reacting a compound of formula (II) with a compound of formula (III) wherein R1 and R2 may be the same or different and are selected from H; a C1-C6 alkyl which may be straight or branched, substituted or unsubstituted; or R1 and R2 together represent an alkylidene group of the formula CRaRb wherein Ra and Rb may be the same or different and are selected from an alkyl group having between 1 and 6 atoms, and wherein R3 represents a C1-C6 alkyl group, wherein the reaction is carried out at reduced pressure. This may advantageously allow for lower reaction temperatures and/or may result in a higher yield. Also, a phase separation step may be omitted. |
---|