FREMGANGSMAATE FOR FREMSTILLING AV VINCAMIN, APOVINCAMIN ELLER DESOKSYVINCAMIN

FREMGANGSMAATE FOR FREMSTILLING AV VINCAMIN, APOVINCAMIN ELLER DESOKSYVINCAMIN

Vincaminic acid derivatives of formula (A) (A) useful in treating cerebral insufficiency, are prepared by reacting 1-ethyl-2,3,4,6,7,12-hexahydroindolo[2,3-a]quinolizine with the 2,4-DNP hydrazone of ethyl or methyl bromopyruvate followed by (i) reduction of the C=N bond and (ii) simultaneous cycliz...

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Bibliographische Detailangaben
1. Verfasser: ROSSEY, GUY
Format: Patent
Sprache:nor
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Zusammenfassung:Vincaminic acid derivatives of formula (A) (A) useful in treating cerebral insufficiency, are prepared by reacting 1-ethyl-2,3,4,6,7,12-hexahydroindolo[2,3-a]quinolizine with the 2,4-DNP hydrazone of ethyl or methyl bromopyruvate followed by (i) reduction of the C=N bond and (ii) simultaneous cyclization with removal of the ketone-protecting group in either order.