Synthesis of vincaminic acid derivatives

C - Chemistry – Metallurgy – 07 – D

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C07D 461/00 (2006.01) C07D 471/14 (2006.01)

Patent

CA 1143735

Abstract: A process is described for producing vincaminic acid derivatives of formula Image (A) in which R is methyl or ethyl and X is hydroxy or hydrogen and Y is hydrogen or X and Y together form a double bond, these derivatives being useful in treatment of cerebral insufficiencies. The process is carried out starting from an enamine of the formula (1) Image (1)

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