What protecting group should I use when coupling H-Lys-Phe-Lys-OH to a carboxylic acid?

I would like to couple the N-terminus of H-Lys-Phe-Lys-OH to a water soluble carboxylic acid (a polysaccharide), using EDC. Which protecting group should I use to preferentially protect the...

13 November 2012 590 3 View