EPC syntheses and structureâactivity relationships of hypoglycaemic semicyclic amidines
作者:S Hartmann
DOI:10.1016/s0223-5234(00)00138-0
日期:2000.4
hypoglycaemic agents by lethargic reaction of O-methylcaprolactim and 3-ethoxy-2-azabicyclo[2.2.2]oct-2-ene, respectively, with homochiral cis-2-substituted cyclopentane amines provided by asymmetrical reductive amination of racemic 2-substituted cyclopentanones. All compounds, except the cyclohexylmethyl-isoquinuclidone derivative which inhibited secretion at 100 microM, significantly stimulated insulin secretion
Coppola, Gary M., Journal of Heterocyclic Chemistry, 1981, vol. 18, p. 767 - 770
作者:Coppola, Gary M.
DOI:——
日期:——
COPPOLA G. M.; DAMON R. E., J. HETEROCYCL. CHEM., 1980, 17, NO 8, 1729-1731
作者:COPPOLA G. M.、 DAMON R. E.
DOI:——
日期:——
COPPOLA, G. M., J. HETEROCYCL. CHEM., 1981, 18, N 4, 767-770
作者:COPPOLA, G. M.
DOI:——
日期:——
(1'<i>R</i>,2'<i>R</i>)-3-[(<i>cis</i>-2'-Cyclohexylmethylcyclopentyl)imino]-2-azabicyclo[2.2.2]octane hydrobromide, a hypoglycaemic semicyclic amidine
作者:S. Hartmann、E. Weckert、A. W. Frahm
DOI:10.1107/s0108270199000402
日期:1999.5.15
The title compound, C19H33N2+.Br-, shows dynamic equilibrium in solution between the Z and E isomers, enabled by the delocalization of the C=N double bond (C - N similar to 1.317 Angstrom) of the amidine function. In the solid state, the absolute configuration has been determined as 1'R,2'R by X-ray analysis exploiting anomalous-dispersion effects. The double bond displays the Z configuration, consistent with like-induction in asymmetric reductive amination of prochiral cycloalkanones. Within the crystal structure the molecules are linked into chains by hydrogen bonds to the Br- ions.