Eburnamonine oxime derivatives, salts thereof, and pharmaceutical agents containing the same

摘要

There is disclosed novel eburnamonine oxime, its derivatives and salts, process for the manufacture thereof and pharmaceutical agents containing the same. The compounds are represented by the following formula. <IMAGE> wherein R is hydrogen, alkyl, alkoxyalkyl, or oxisilanylalkyl group or a group of <IMAGE> R1 and R2 are same or different and respectively hydrogen, alkyl having 1 to 4 carbon atoms, aryl or aralkyl group, or R1 represents together with R2 and the neighboring nitrogen atom a non-substituted or substituted heterocyclic ring, and n is an integer of 2 or 3.