Substituted melatonin derivatives, process for their preparation, and methods of use
申请人:Tao Chunlin
公开号:US20070191463A1
公开(公告)日:2007-08-16
The invention provides 2 aryl substituted derivatives of melatonin. The invention further provides pharmaceutical compositions comprising such derivatives, methods for preparing such derivatives, and methods of using such derivatives to induce general anesthesia, sedation, and/or hypnotic or sleep effects in a patient, and to treat conditions affected by melatonin activity in a patient.
This invention relates to novel 1,2-benzisoxazol-3-yl compounds, their derivatives, pharmaceutically acceptable salts, solvates, and hydrates thereof. This invention also provides compositions comprising a compound of this invention and the use of such compositions in methods of treating diseases and conditions that are beneficially treated by administering an antagonist of both dopamine and serotonin receptors.
Conformationally Restrained Melatonin Analogues: Synthesis, Binding Affinity for the Melatonin Receptor, Evaluation of the Biological Activity, and Molecular Modeling Study
design, synthesis, and biological profile of several indole melatonin analogues with a conformationally restricted C3 amidoethane side chain are presented. Examination of the accessible conformations of the melatonin side chain led us to explore some of its fully or partially restricted analogues, 2-12, the bindingaffinity values of which were utilized to gain further insight on the melatonin binding
was synthesized and their affinity for the melatoninreceptor, isolated from whole quail brains, was tested in a succession of in vitro ligand-receptor binding experiments, using 2-[125I]iodomelatonin as a labeled ligand. Optimization of the C2 substituent and the N-acyl group resulted in compounds having picomolar affinity for the receptor (vs nanomolar affinity for melatonin). In two tests for evaluation
[EN] MELATONIN ANALOGUE PRODRUGS<br/>[FR] PROMEDICAMENTS ANALOGUES DE LA MELATONINE
申请人:UNIV IOWA RES FOUND
公开号:WO2005044261A1
公开(公告)日:2005-05-19
Disclosed are compounds that can serve as melatonin analogue prodrugs and that are soluble in aqueous solvents. Melatonin or melatonin analogues having modifications to the indole moiety are coupled to a tertiary amine to form a quaternary amine such that there is a saturated two-carbon linkage between the carbonyl of the melatonin structure and the amine nitrogen. This structure is stable in acidic environments, but is unstable at basic or neutral pH. Therefore, these melatonin analogue prodrugs are stable in a vial at acidic pH, but will breakdown upon injection into the body to liberate the melatonin analogue and the tertiary amine, which is nontoxic. The melatonin analogue being not modified on the indole moiety exerts similar pharmacological properties as melatonin: antioxidation, sedation and anesthesia.