Increased Polymer Length of Oligopeptide-Substituted Polynorbornenes with LiCl
摘要:
The ring-opening metathesis polymerization (ROMP) reaction is extraordinarily useful for the preparation of a large variety of polymers. We report that the length (n = 25-50) of high-substituent-density oligopeptide polymers synthesized by ROMP is dramatically improved upon addition of LiCl to reduce polymer and oligopeptide aggregation. This methodology should significantly expand the variety of polymers that may be prepared by ROMP and be of general use with norbornyl oligopeptides of any sequence.
A Facile Synthetic Method to Prepare Fluorescently Labeled ROMP Polymers
摘要:
To probe the activities of sperm ADAM protein (fertilin,6), we devised a general synthetic strategy to generate fluorescently labeled fertilinbeta oligopeptide polymers. Immunofluorescence studies with these polymers demonstrated that fertilinbeta polymers bind specifically to a protein receptor on the mouse egg plasma membrane.