C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 69/675 (2006.01) C07C 67/31 (2006.01) C07D 339/04 (2006.01)
Patent
CA 2231093
The invention relates to a process for the preparation of compounds of the general formula I Image in which R1 and R2 are identical or different and are a C1-C20-alkyl group, C~-12-cycloalkyl group, C~-C12- aralkyl group or a mono- or binuclear aryl group, in which a ketone of the formula III or IV Image in which R1 and R2 have the above meaning, is asymmetrically hydrogenated.
Gewald Rainer
Laban Gunter
Asta Medica Ag
Marks & Clerk
Meda Pharma Gmbh & Co. Kg
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