β-Analogs of PLG (l-prolyl-l-leucyl-glycinamide): Ex-chiral pool syntheses and dopamine D2 receptor modulating effects

β-Analogs of PLG (l-prolyl-l-leucyl-glycinamide): Ex-chiral pool syntheses and dopamine D2 receptor modulating effects Synthesis and allosteric modulation of the dopamine receptor by peptide analogs of l-prolyl-l-leucyl-glycinamide (PLG) modified in the l-proline or l-proline and l-leucine scaffolds Synthesis and dopamine receptor modulating activity of lactam conformationally constrained analogs of Pro-Leu-Gly-NH2 Synthesis of Pro-Leu-Gly-NH2 analogs modified at the prolyl residue and evaluation of their effects on the receptor binding activity of the central dopamine receptor agonist, ADTN Dopamine receptor modulation by Pro-Leu-Gly-NH2 analogs possessing cyclic amino acid residues at the C-terminal position Synthesis and biological evaluation of analogs of Pro-Leu-Gly-NH2 modified at the leucyl residue Synthesis and dopamine receptor modulating activity of unsubstituted and substituted triproline analogues of l-prolyl-l-leucyl-glycinamide (PLG) Dopamine receptor modulation by a highly rigid spiro bicyclic peptidomimetic of Pro-Leu-Gly-NH2 Bicyclic thiazolidine lactam peptidomimetics of the dopamine receptor modulating peptide Pro-Leu-Gly-NH2 Design and Synthesis of Photoaffinity-Labeling Ligands of the<scp>l</scp>-Prolyl-<scp>l</scp>-leucylglycinamide Binding Site Involved in the Allosteric Modulation of the Dopamine Receptor