PROCESS FOR PRODUCING 20, 21-DINOREBURNAMENINE DERIVATIVES SUBSTITUTED INTHE 9,10 AND/OR 11-LOCATION AND PHARMACEUTICAL PREPARATIVES CONTAINING SAID COMPOUNDS

摘要

New 20,21-dinoreburnamenine derivatives substituted in positions 9,10 and/or 11, process for their preparation and new intermediates thus obtained. These products have advantageous pharmacological properties which justify their use as medications.