Ligand template design

A second example is that involving the use of a glucopyranoside nonpeptide template by Hirschmann and coworkers [41, 46] for systematic functionalization to create novel peptidomimetics for the somatostain (SRIF) and substance-P (NKj) receptors. As illustrated in Figure 10, the cyclic hexapeptide SRIF agonist provided a macrocyclic lead stmcture that was transformed to a glucopyranoside template designed to substitute for a postulated 3 turn about the Tyr-D-Trp-Lys-Thr substructure of the parent peptide ligand. The prototype... 

The use of absolute similarity and diversity methods provides useful information about overall similarities and differences between molecules, or databases of molecules, but for certain similarity and diversity design applications, the use of a relative measure that is internally referenced to a feature or substructure of interest can provide a more powerful tool. This is true for a receptor-based design and for ligand-based design around a feature or substructure of interest. A common frame of reference enables ligand-based and receptor-based studies to be combined, for example with reagents in an active site and on a template... 

Ligand-based Template Design for GPCR-targeted Libraries I 315... 

Ligand-based Template Design for CPCR-targeted Libraries I 317... 

Streptavidin-single-stranded DNA covalent conjugates were described as the building blocks for assembling nanostructured scaffolds [31], The amount and type of biotinylated ligands were used to modulate the affinity of duplex formation between solid-phase-bound nucleic acid templates and DNA-streptavidin conjugates. This system has been proposed for the design of fine-tuned sequence detection systems. 

The preparation of BINAP reported in 1980 has marked a landmark in asymmetric catalysis and has illustrated the peculiar stereorecognitive properties inherent with the axially chiral 1,1 -binaphthalene framework. Since then, a great deal of work has been devoted to the preparation of binaphthalene-templated ligands of related design. These efforts have resulted in the... 

The strategy used to design active and selective catalysts was based on the following five factors for regulation, (i) conformation of ligands coordinated to Rh atom (ii) orientation of a vacant site on Rh (iii) cavity with the template molecular shape for reaction space produced behind template removal (iv) architecture of the cavity wall and (v) micropore in inorganic polymer-matrix overlayers stabilizing the active species at the surface [46, 47, 71]. 

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