| 摘要 |
A method of inducing immunostimulating activity in warm-blooded animals comprising administering to warm-blooded animals an immunostimulating amount of at least one maleo-pimaric acid compound of the formula <IMAGE> I wherein R1 and R2 together with the nitrogen to which they are attached form an optionally substituted saturated heterocycle optionally containing at least one other heteroatom, Y is selected from the group consisting of hydrogen, amino, alkyl of 1 to 5 carbon atoms optionally substituted with at least one hydroxy, dialkylamino with alkyl of 1 to 5 carbon atoms, alkoxy carbonyl of 2 to 5 carbon atoms, acyl of an organic carboxylic acid of 1 to 5 carbon atoms and <IMAGE> X is an alkylene of 1 to 5 carbon atoms and R1 and R2 have the above definition. |
