Polyethylene glycol combinatorial synthesis

A demonstration of liquid-phase combinatorial synthesis was recently introduced whereby the highly soluble, but highly crystalline, monomethyl polyethylene glycol (PEG) was employed to allow solution synthesis of a peptide library and solid phase-like purification by a change to a solvent where the PEG was insoluble. The demonstration penta-peptide library yielded the expected anti-P-endorphin binding sequence [65]... 

The concept of liquid-phase combinatorial synthesis (LPCS) was introduced by Han et al. [171] in a paper where a peptide and a sulfonamide libraries were prepared using PEG (polyethylene glycol) as support. The support was chosen because of its successful application in peptide, oligosaccharide and... 

Park WKC, Auer M, Jaksche H, Wong CH, Rapid combinatorial synthesis of aminoglycoside antibiotic mimetics use of a polyethylene glycol-linked amine and a neamine-derived aldehyde in multiple component condensation as a strategy for the discovery of new inhibitors of the HIV RNA Rev responsive elements, J. Am. Chem. Soc., 118 10150-10155, 1996. 

A hybrid between combinatorial synthesis on solid phase and in solution phase is the liquid-phase method characterized by the application of carrier polymers completely soluble in one solvent and insoluble in another solvent, for example functionalized polyethylene glycol [32,33]. 

Barany, G., Alberido, F., Kates, S.A. and Kempe, M. (1997) Polyethylene glycol)-Containing Supports for Solid-Phase Synthesis of Peptides and Combinatorial Organic Libraries. In ACS Symposium Series 680. Polyethylene glycol) Chemistry and Biological Applications (eds J.M. Harris and S. Zalipsky), American Chemical Sodety, Washington, DC, pp. 239-64. 

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