Design and Synthesis of Novel Derivatives of the Muscarinic Agonist Tetra(ethylene Glycol)(3-Methoxy-1, 2, 5-Thiadiazol-4-Yl) [3-(1-Methyl-1, 2, 5, 6-Tetrahydropyrid-3-Yl)-1, 2, 5-Thiadiazol-4-Yl] Ether (CDD-0304): Effects of Structural Modifications on the Binding and Activity at Muscarinic Receptor Subtypes and Chimeras
