TY - GEN AU - Piekielna,Justyna AU - Kluczyk,Alicja AU - Perlikowska,Renata AU - Janecka,Anna TI - Cyclic pentapeptide analogs based on endomorphin-2 structure: cyclization studies using liquid chromatography combined with on-line mass spectrometry and tandem mass spectrometry SN - 1873-5169 PY - 2014///1218 KW - Amino Acid Sequence KW - Chromatography, High Pressure Liquid KW - Cyclization KW - Cystine KW - chemistry KW - Narcotics KW - chemical synthesis KW - Oligopeptides KW - Peptides, Cyclic KW - Solid-Phase Synthesis Techniques KW - Spectrometry, Mass, Electrospray Ionization KW - Tandem Mass Spectrometry N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1016/j.peptides.2014.02.001 ER -