Results and discussion
During mass spectra analysis (MS), molecular weight
of each peptide and signals were determined, which corresponded
to pseudo molecular ions [M + H]+ and alkali
metals adducts: [M + Na]+, [M + K]+ of analyzed oligopeptides.
On the basis of the weight of the peptides the performance
of the conducted syntheses was calculated. The
data are summarized in Table 1.
Homogeneity of received fractions was verified with
the TLC technique. From the chromatograms, coefficients
Rf of obtained compounds were calculated, that is: the ratio
of the distance traveled by the substance being separated
to the distance traveled by the head of the eluent (developing
system) [22]. The characteristics are shown in
Table 1.