Ruthenium-Catalysed Enantioselective Hydrogenation of Trisubstituted Enamides Derived from 2-Tetralone and 3-Chromanone: Influence of Substitution on the Amide Arm and the Aromatic Ring
作者:J. L. Renaud、P. Dupau、A.-E. Hay、M. Guingouain、P. H. Dixneuf、C. Bruneau
DOI:10.1002/adsc.200390017
日期:2003.1
Cyclic enamides were prepared in one step from tetralone and chromanone derivatives and primary amides under acidic conditions. The enantioselectivehydrogenation of these enamides bearing an endocyclic trisubstituted carbon-carbon double bond was performed at room temperature in the presence of ruthenium catalysts. On the one hand, the nature of the amide group had little influence on the enantioselectivity
Substituted 2-amidotetralins as melatonin agonists and antagonists
申请人:NORTHWESTERN UNIVERSITY
公开号:EP0420064A2
公开(公告)日:1991-04-03
The present invention relates generally to compounds having melatonin receptor activities and in particular to substituted 2-amidotetralin derivatives; to pharmaceutical preparations comprising such compounds; and to methods for using these compounds as therapeutic and diagnostic reagents.
2-Amido-8-methoxytetralins: A series of nonindolic melatonin-like agents
作者:Swier Copinga、Pieter G. Tepper、Cor J. Grol、Alan S. Horn、Margarita L. Dubocovich
DOI:10.1021/jm00072a008
日期:1993.10
A series of unsubstituted and methoxy-substituted 2-amidotetralins (4a-q) was prepared and evaluated for their ability to compete for 2-[I-125]iodomelatonin binding to chicken retinal membranes and for their potency to inhibit the calcium-dependent release of [H-3]dopamine from rabbit retina. The lead compound, 2-acetamido-8-methoxytetralin (4j), showed a moderate affinity (K(i) = 46 nM) and potency (IC50 = 1.4 nM) at the melatonin receptor. The structural requirements necessary for optimal agonistic activity at the melatonin receptor are as follows. First, the amido group, which should have a small, nonbranched alkyl group, is essential for affinity, and second, the methoxy substituent at the 8-position of the 2-amidotetralin ring is essential for optimal agonistic activity at the melatonin receptor. We concluded that this series of unsubstituted and methoxy-substituted 2-amidotetralins constitutes a class of nonindolic melatonin-like agents that can be used as pharmacological tools to further characterize melatonin receptors and to elucidate the mode of action of melatonin.
Bamberger; Mueller, Chemische Berichte, 1888, vol. 21, p. 850,859
作者:Bamberger、Mueller
DOI:——
日期:——
Pope; Harvey, Journal of the Chemical Society, 1901, vol. 79, p. 76