| abstract |
Substituted 1,4,5,6-tetrahydropyrimidine compositions, substituted 1,2,3,6-tetrahydropyrimidine compositions as well as substituted 3,4,5,6-tetrahydropyrimidine compositions are described. Said compositions are intended to be used for the stimulation of muscarinic receptors comprising, for example, the treatment of the symptoms of cognitive disorders, in particular impaired memory, which are associated with the reduced synthesis of acetylcholine and with the generation of cholinergic cells. |