Synthesis and Enantioselectivity of Optically Active 1- and 3-Substituted 4-Phenyl-1,2,3,4-tetrahydroisoquinolin-4-ols and Related Compounds as Norepinephrine Potentiators
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概要
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Optically active 1,2-dimethyl-4-phenyl-1,2,3,4-tetrahydroisoquinolin-4-ols (1R, 4R-3a and 1S, 4S-3b, 1S, 4R-4a, and 1R, 4S-4b) and 2-methyl-4-phenyl-1,2,3,4-tetrahydroisoquinolines (4S-5a and 4R-5b) were prepared in order to examine the effects of the 1-, 3-, and 4-substituents of 2-methyl-4-phenyl-1,2,3,4-tetrahydroisoquinolin-4-ol (PI-OH) (1) on the enantioselectivity for norepinephrine (NE) potentiating activity. The conformations and absolute configurations of 3-5 were determined from their ^1H-NMR and circular dichroism (CD) spectra and by single-crystal X-ray diffractometric analysis. The NE potentiating activity of the optically active 3-5 and previously prepared 3-methyl derivatives (3R, 4R-6a and 3S, 4S-6b) of PI-OH were tested. The results show that compounds 3,4,and 6 had high enantioselectivity for NE potentiation : the 4R series of the enantiomers exhibited activity but not the 4S-enantiomers. The activity of the 4-desoxy compound 5 also resided exclusively in the 4S-enantiomer. These findings suggest the presence of a specific receptor for NE uptake, and the enantiomers 3a, 4a, 5a, and 6a may be antagonistic at this NE uptake receptor.
- 社団法人日本薬学会の論文
- 1995-09-15
著者
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木原 勝
Faculty Of Pharmaceutical Sciences The University Of Tokushima
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平良 全栄
Faculty of Pharmaceutical Sciences, Tokushima Bunri University
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長尾 善光
Faculty of Pharmaceutical Sciences, The University of Tokushima
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平良 全栄
Faculty Of Pharmaceutical Sciences Tokushima Bunri University
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守時 英喜
Faculty Of Pharmaceutical Sciences The University Of Tokushima
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池内 元樹
Faculty of Pharmaceutical Sciences, The University of Tokushima
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足立 聡子
Faculty of Pharmaceutical Sciences, The University of Tokushima
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山口 真理
Faculty of Pharmaceutical Sciences, The University of Tokushima
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長尾 善光
Faculty Of Pharmaceutical Sciences The University Of Tokushima
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山口 真理
Faculty Of Pharmaceutical Sciences The University Of Tokushima
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Kihara M
Graduate School Of Pharmaceutical Sciences The University Of Tokushima
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足立 聡子
Faculty Of Pharmaceutical Sciences The University Of Tokushima
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池内 元樹
Faculty Of Pharmaceutical Sciences The University Of Tokushima
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