The synthesis and structural characterization of novel N-meta-ferrocenyl benzoyl amino acid esters
作者:David Savage、Nicola Neary、Gwen Malone、Steven R. Alley、John F. Gallagher、Peter T.M. Kenny
DOI:10.1016/j.inoche.2005.01.031
日期:2005.5
A series of N-meta-ferrocenyl benzoyl amino acid esters 3-10 have been prepared by coupling meta-ferrocenyl benzoic acid 2 to the amino acid esters using the conventional 1,3-dicyclohexylcarbodiimide (DCC), 1-hydroxybenzotriazole (HOBt) protocol. The amino acids employed in the synthesis were glycine, L-alanine, L-leucine, L-phenylalanine, beta-alanine, 4-aminobutyric acid, 2-aminobutyric acid and 2-aminoisobutyric acid. The compounds were fully characterized by a range of NMR spectroscopic techniques and mass spectrometry (MALDI-MS, ESI-MS). (c) 2005 Elsevier B.V. All rights reserved.
Synthesis, characterization and in vitro anti-cancer activity of N-(ferrocenyl)benzoyl tri- and tetrapeptide esters
作者:Alan J. Corry、Áine Mooney、Dermot O’Sullivan、Peter T.M. Kenny
DOI:10.1016/j.ica.2009.01.021
日期:2009.7
N-ortho, N-meta and N-para-(ferrocenyl)benzoyl tri- and tetrapeptide esters (2-7) were prepared by coupling ortho, meta and para-ferrocenyl benzoic acids to the tri- and tetrapeptide ethyl esters of GlyGlyGly(OEt) and GlyGlyGlyGly(OEt) in the presence of N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride and 1-hydroxybenzotriazole. The compounds were characterized by a range of NMR spectroscopic techniques, mass spectrometry and cyclic voltammetry. The anti-proliferative effects of the ortho derivatives 2 and 5 were measured in vitro against H1299 lung cancer cells and both gave IC50 values greater than 50 mu M. Therefore, extending the length of the peptide chain had a negative effect on activity, relative to N-(ferrocenyl)benzoyl amino acid and dipeptide derivatives. (C) 2009 Elsevier B.V. All rights reserved.