Abstract: The invention provides novel nicotinic acetylcholine receptor agonists, for example, phantasmidine and derivatives thereof, for example a compound of formula I. Also disclosed are methods of treating disorders responsive to nicotinic acetylcholine receptor agonists such as Alzheimer's disease, schizophrenia, Myasthenia Gravis, Tourette's syndrome, Parkinson's disease, epilepsy, pain, and cognitive dysfunction by treatment with the nicotinic acetylcholine receptor agonists.

Abstract: The invention provides novel nicotinic acetylcholine receptor agonists, for example, phantasmidine and derivatives thereof, for example a compound of formula I. Also disclosed are methods of treating disorders responsive to nicotinic acetylcholine receptor agonists such as Alzheimer's disease, schizophrenia, Myasthenia Gravis, Tourette's syndrome, Parkinson's disease, epilepsy, pain, and cognitive dysfunction by treatment with the nicotinic acetylcholine receptor agonists.

Abstract: The invention provides novel nicotinic acetylcholine receptor agonists, for example, phantasmidine and derivatives thereof, for example a compound of formula I. Also disclosed are methods of treating disorders responsive to nicotinic acetylcholine receptor agonists such as Alzheimer's disease, schizophrenia, Myasthenia Gravis, Tourette's syndrome, Parkinson's disease, epilepsy, pain, and cognitive dysfunction by treatment with the nicotinic acetylcholine receptor agonists.

Abstract: The invention provides novel nicotinic acetylcholine receptor agonists, for example, phantasmidine and derivatives thereof, for example a compound of formula (I). Also disclosed are methods of treating disorders responsive to nicotinic acetylcholine receptor agonists such as Alzheimer's disease, schizophrenia, Myasthenia Gravis, Tourette's syndrome, Parkinson's disease, epilepsy, pain, and cognitive dysfunction by treatment with the nicotinic acetylcholine for agonists.

Abstract: The present invention is directed to compounds, compositions and methods of treating pain, and derivatives that have potent analgetic activity. The compounds have the formula: ##STR1## wherein R.sup.1 is selected from H, lower alkyl, C.sub.3 -C.sub.9 cycloalkyl, acyl, C.sub.3 -C.sub.9 cycloalkylalkyl, haloalkyl, alkenyl, alkynyl, hydroxyalkyl, C.sub.3 -C.sub.8 cycloalkenyl C.sub.3 -C.sub.8 cycloalkynyl and phenyl; and wherein R is selected from cycloalkyl, aryl, heteroaryls (selected from the group consisting of pyridyl, thienyl, furanyl, imidazolyl, pyrazinyl, and pyrimidyl) or phenoxy and wherein said R groups can be substituted with hydroxyl, C.sub.1 -C.sub.6 lower alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.1 -C.sub.6 lower alkoxyl, halo, C.sub.1 -C.sub.6 haloalkyl, amino, C.sub.1 -C.sub.6 alkylamino and C.sub.2 -C.sub.10 dialkylamino, and sulfonamido or a pharmaceutically acceptable salt thereof.

Abstract: The present invention is directed to compounds, compositions and methods of treating pain, and derivatives that have potent analgetic activity. The compounds have the formula: ##STR1## wherein R.sup.1 is selected from H, lower alkyl, C.sub.3 -C.sub.9 cycloalkyl, acyl, and C.sub.3 -C.sub.9 cycloalkylalkyl, haloalkyl, alkenyl, alkynyl, hydroxyalkyl, or C.sub.3 -C.sub.8 cycloalkenyl or C.sub.3 -C.sub.8 cycloalkynyl; and wherein R is selected from cycloalkyl, aryl, heteroaryls (selected from the group consisting of pyridyl, thienyl, furanyl, imidazolyl, pyrazinyl, and pyrimidyl) or phenoxy and wherein said R groups can be substituted with hydroxyl, C.sub.1 -C.sub.6 lower alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.1 -C.sub.6 lower alkoxyl, halo, C.sub.1 -C.sub.6 haloalkyl, amino, C.sub.1 -C.sub.6 alkylamino and C.sub.2 -C.sub.10 dialkylamino, and sulfonamido or a pharmaceutically acceptable salt thereof.