In present study, a natural phenylalanine-rich cycloheptapeptide segetalin C (compound
VIII) was synthesized by coupling and cyclization of peptide units Boc-gly-L-leu-L-his-OH
and L-Phe-L-ala-L-phe-L-pro-OMe and examined for different bioactivities. The structure
of compound VIII was elucidated by IR, 1H NMR, 13C NMR, mass spectral data and elemental analysis. It was demonstrated that the newly
synthesized cyclopeptide has good activity against pathogenic fungi Candida albicans and dermatophytes, in addition to high cytotoxicity against Dalton’s lymphoma ascites
(DLA) and Ehrlich’s ascites carcinoma (EAC) cell lines with CTC50 values of 3.35 and 5.72 µmol/L.
Key words
Antimicrobials - Cytotoxic agents - Heptapeptide, cyclic - Segetalin C, anthelmintic
activity, antimicrobial evaluation, cytotoxicity -
Vaccaria segetalis