C3-Methylated 5-hydroxy-2-(dipropylamino)tetralins: conformational and steric parameters of importance for central dopamine receptor activation
摘要:
C3-Methyl-substituted derivatives of the potent dopamine (DA) receptor agonist 5-hydroxy-2-(di-n-propylamino)tetralin (5-OH-DPAT) have been synthesized and their conformational preferences have been studied by use of NMR spectroscopy, X-ray crystallography, and molecular mechanics calculations (MMP2). The compounds were tested for activity at central DA receptors, by use of biochemical and behavioral tests in rats. (2R,3S)-5-Hydroxy-3-methyl-2-(di-n-propylamino)tetralin [(-)-8] was demonstrated to be a highly potent DA receptor agonist, while the other new compounds were of low potency or inactive. Results obtained confirmed the hypothesis that the tetralin inversion angle phi and the direction of the N-electron pair (N-H) tau N are conformational parameters of critical importance for DA D2 receptor activation in the 2-aminotetralin series. The high potency of (-)-8 allowed an extension of a previously defined "partial DA D2 receptor excluded volume".
Lundkvist, J. R. Michael; Johansson, Anette M.; Arvidson, Lars-Erik, Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry, 1986, vol. 40, # 6, p. 508 - 511
Syntheses of 5-, 7-, and 8-methoxy-3-methyl-2-tetralones
作者:Anette M. Johansson、Charlotta Mellin、Uli Hacksell
DOI:10.1021/jo00376a038
日期:1986.12
LUNDKVIST J. R. M.; JOHANSSON A. M.; ARVIDSSON L. -E.; HACKSELL U., ACTA CHEM. SCAND., 40,(1986) N 6, 508-511
作者:LUNDKVIST J. R. M.、 JOHANSSON A. M.、 ARVIDSSON L. -E.、 HACKSELL U.
DOI:——
日期:——
JOHANSSON A. M.; MELLIN CH.; HACKSELL U., J. ORG. CHEM., 51,(1986) N 26, 5252-5258
作者:JOHANSSON A. M.、 MELLIN CH.、 HACKSELL U.
DOI:——
日期:——
JOHANSSON A. M.; NILSSON J. L. G.; KARLEN A.; HACKSELL U.; SVENSSON K.; C+, J. MED. CHEM., 30,(1987) N 7, 1135-1144
作者:JOHANSSON A. M.、 NILSSON J. L. G.、 KARLEN A.、 HACKSELL U.、 SVENSSON K.、 C+
DOI:——
日期:——
C3-Methylated 5-hydroxy-2-(dipropylamino)tetralins: conformational and steric parameters of importance for central dopamine receptor activation
作者:Anette M. Johansson、J. Lars G. Nilsson、Anders Karlen、Uli Hacksell、Kjell Svensson、Arvid Carlsson、Lennart Kenne、Staffan Sundell
DOI:10.1021/jm00390a004
日期:1987.7
C3-Methyl-substituted derivatives of the potent dopamine (DA) receptor agonist 5-hydroxy-2-(di-n-propylamino)tetralin (5-OH-DPAT) have been synthesized and their conformational preferences have been studied by use of NMR spectroscopy, X-ray crystallography, and molecular mechanics calculations (MMP2). The compounds were tested for activity at central DA receptors, by use of biochemical and behavioral tests in rats. (2R,3S)-5-Hydroxy-3-methyl-2-(di-n-propylamino)tetralin [(-)-8] was demonstrated to be a highly potent DA receptor agonist, while the other new compounds were of low potency or inactive. Results obtained confirmed the hypothesis that the tetralin inversion angle phi and the direction of the N-electron pair (N-H) tau N are conformational parameters of critical importance for DA D2 receptor activation in the 2-aminotetralin series. The high potency of (-)-8 allowed an extension of a previously defined "partial DA D2 receptor excluded volume".