Fig. 7.

Schematic workflow of carbodiimide condensation coupled with bead fishing. The R-group is a hydrogen atom (–H) in a serine and methyl group (–CH3) in a threonine. tBoc—t-butyl-dicarbonate, EDC—N,N′-dimethylaminopropyl ethyl carbodiimide, TFA—trifluoroacetic acid