Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Oliwia Frączak"'
Autor:
Oliwia Frączak, Kinga Kądzioła-Długołęcka, Bogdan Walkowiak, Anna Trynda, Krzysztof Makowski, Radosław Wilczek, Piotr Komorowski, Beata Tkacz-Szczesna, Ilona Kijewska, Robert Bachliński
Publikováno v:
Australian Journal of Forensic Sciences. 53:154-165
This publication describes analytical data for four psychoactive substances: 5F-PB-22, NM-2201, UR-144 and AB-CHMINACA. Compounds were synthesized in our laboratory and their presence was confirmed using electrospray ionisation mass spectrometry (ESI
Autor:
Piotr Komorowski, Krzysztof Makowski, Kinga Kądzioła-Długołęcka, Radosław Wilczek, Oliwia Frączak, Beata Tkacz-Szczesna, Anna Trynda, Bogdan Walkowiak, Robert Bachliński, Ilona Kijewska
Publikováno v:
Vibrational Spectroscopy. 111:103176
This publication deals with three psychoactive substances: 5-IT (1-(1H-Indol-5-yl)propan-2-amine), MT-45 (1-cyclohexyl-4-(1,2-diphenylethyl)-piperazine) and 4-CMC (2-methylamino-1-para-chlorofluorophenyl-propan-1-one). These compounds are hazardous t
Autor:
Andrzej Ejchart, Anika Lasota, Aleksandra Misicka, Oliwia Frączak, Maciej Maciejczyk, Aleksandra Olma, Piotr Kosson, Michał Nowakowski
Publikováno v:
Journal of Peptide Science. 22:545-551
The synthesis of new dermorphin analogues is described. The (R)-alanine or phenylalanine residues of natural dermorphin were substituted by the corresponding α-methyl-β-azidoalanine or α-benzyl-β-azido(1-piperidinyl)alanine residues. The potency
Autor:
Anika Lasota, Dagmara Tymecka, Aleksandra Olma, Piotr Kosson, Aleksandra Misicka, Adriana Muchowska, Oliwia Frączak
Publikováno v:
Journal of Peptide Science. 22:222-227
In this study, proteinogenic amino acids residues of dimeric dermorphin pentapeptides were replaced by the corresponding β(3)-homo-amino acids. The potency and selectivity of hybrid α/β dimeric dermorphin pentapeptides were evaluated by competetiv
Autor:
Oliwia Frączak, Michał Nowakowski, Aleksandra Olma, Anika Lasota, Maciej Maciejczyk, Andrzej Ejchart, Adriana Muchowska
Publikováno v:
Chemical Biology & Drug Design. 87:824-832
This article describes new deltorphin I analogs in which phenylalanine residues were replaced by the corresponding (R) or (S)-α-benzyl-β-azidoalanine, α-benzyl-β-(1-pyrrolidinyl)alanine, α-benzyl-β-(1-piperidinyl)alanine, and α-benzyl-β-(4-mo
Autor:
Aleksandra Olma, Oliwia Frączak, Adriana Muchowska, Anna Leśniak, Piotr Kosson, Anika Lasota, Andrzej W. Lipkowski
Publikováno v:
Peptides. 66:13-18
Biphalin, a synthetic opioid octapeptide with a palindromic sequence has high analgesic activity. Biphalin displays a strong affinity for μ and δ-opioid receptors, and a significant to κ-receptor. The paper reports the synthesis of novel analogs o
Autor:
Aleksandra Olma, Anika Lasota, Andrzej Ejchart, Oliwia Frączak, Michał Nowakowski, Andrzej W. Lipkowski, Anna Leśniak, Adriana Muchowska
Publikováno v:
Journal of Peptide Science. 21:120-125
New analogues of deltorphin I (DT I, Tyr-D-Ala-Phe-Asp-Val-Val-Gly-NH2 ), with the D-Ala residue in position 2 replaced by α-methyl-β-azido(amino, 1-pyrrolidinyl, 1-piperidinyl or 4-morpholinyl)alanine, were synthesized by a combination of solid-ph
Autor:
Maciej, Maciejczyk, Anika, Lasota, Oliwia, Frączak, Piotr, Kosson, Aleksandra, Misicka, Michał, Nowakowski, Andrzej, Ejchart, Aleksandra, Olma
Publikováno v:
Journal of peptide science : an official publication of the European Peptide Society. 22(8)
The synthesis of new dermorphin analogues is described. The (R)-alanine or phenylalanine residues of natural dermorphin were substituted by the corresponding α-methyl-β-azidoalanine or α-benzyl-β-azido(1-piperidinyl)alanine residues. The potency
Autor:
Anika, Lasota, Oliwia, Frączak, Anna, Leśniak, Adriana, Muchowska, Andrzej W, Lipkowski, Michał, Nowakowski, Andrzej, Ejchart, Aleksandra, Olma
Publikováno v:
Journal of peptide science : an official publication of the European Peptide Society. 21(2)
New analogues of deltorphin I (DT I, Tyr-D-Ala-Phe-Asp-Val-Val-Gly-NH2 ), with the D-Ala residue in position 2 replaced by α-methyl-β-azido(amino, 1-pyrrolidinyl, 1-piperidinyl or 4-morpholinyl)alanine, were synthesized by a combination of solid-ph
Publikováno v:
Chemical biologydrug design. 84(2)
Biphalin, a synthetic opioid peptide with a broad affinity for all opioid receptors (d, l, and j) and high antinociceptive activity, has been under extensive study as a potential analgesic drug. This study presents the synthesis and biological proper