a 36-residue peptide amide corresponding to the entire amino acid sequence of porcine peptide yy ( pyy ) was synthesized by assembling eight peptide fragments of established purity , followed by hard acid deprotection with 1m trimethylsilyl trifluoromethanesulfonate in trifluoroacetic acid . beta-cycloheptylaspartate , asp ( ochp ) , was employed to minimize the base-catalyzed succinimide formation .
C0030956
peptide
C0030935
peptide fragments