| abstract |
The invention relates to racemic or optically active eburnane derivatives of the formula (I), <IMAGE> (I) wherein R represents an alkyl group having 1 to 6 carbon atoms, A stands for hydroxyl and Y is hydrogen, or A and Y together form an oxo group, and the configuration of the hydrogen in the 3-position and of R is alpha , alpha and/or beta , beta or alpha , beta and/or beta , alpha , and acid addition salts thereof. The new compounds possess valuable pharmaceutical properties, thus their certain representatives show antiallergic activity, while others are potent antidepressive, gastric secretion inhibiting and anticonvulsive agents. The compounds of the formula (I) and pharmaceutically acceptable acid addition salts thereof can therefore be employed as active ingredients of pharmaceutical compositions, which are also within the scope of the invention. |