5420-67-7Relevant articles and documents
Design and synthesis of N-benzoyl amino acid derivatives as DNA methylation inhibitors
Garella, Davide,Atlante, Sandra,Borretto, Emily,Cocco, Mattia,Giorgis, Marta,Costale, Annalisa,Stevanato, Livio,Miglio, Gianluca,Cencioni, Chiara,Fernández-de Gortari, Eli,Medina-Franco, José L.,Spallotta, Francesco,Gaetano, Carlo,Bertinaria, Massimo
, p. 664 - 676 (2016/10/25)
The inhibition of human DNA Methyl Transferases (DNMT) is a novel promising approach to address the epigenetic dysregulation of gene expression in different diseases. Inspired by the validated virtual screening hit NSC137546, a series of N-benzoyl amino acid analogues was synthesized and obtained compounds were assessed for their ability to inhibit DNMT-dependent DNA methylation in vitro. The biological screening allowed the definition of a set of preliminary structure–activity relationships and the identification of compounds promising for further development. Among the synthesized compounds, L-glutamic acid derivatives 22, 23, and 24 showed the highest ability to prevent DNA methylation in a total cell lysate. Compound 22 inhibited DNMT1 and DNMT3A activity in a concentration-dependent manner in the micromolar range. In addition, compound 22 proved to be stable in human serum and it was thus selected as a starting point for further biological studies.
Methotrexate Analogues. 31. Meta and Ortho Isomers of Aminopterin, Compounds with a Double Bond in the Side Chain, and a Novel Analogue Modified at the α-Carbon: Chemical and in Vitro Biological Studies
Rosowsky, Andre,Bader, Henry,Forsch, Ronald A.,Moran, Richard G.,Freisheim, James H.
, p. 763 - 768 (2007/10/02)
Five heretofore undescribed analogues of methotrexate (MTX) and aminopterin (AMT) were synthesized and tested as dihydrofolate reductase (DHFR) inhibitors and tumor cell growth inhibitors.The meta isomer of AMT was obtained from 2,4-diamino-6-(bromomethyl)pteridine and m-(aminobenzoyl)-L-glutamic acid, while the ortho isomer was obtained via the same route by using α-methyl γ-tert-butyl o-(aminobenzoyl)-L-glutamate instead of the free acid.Analogues of MTX and AMT containing a double bond in the side chain were prepared from dimethyl D,L-2-amino-4-hexenedioate and 4-amino-4-deoxy-N10-methylpteroic acid and 4-amino-4-deoxy-N10-formylpteroic acid, respectively.Finally, a positional isomer of MTX with the CH2CH2COOH moiety moved from the α-carbon to the adjacent carboxamide nitrogen was synthesized from 3-propanoic acid diethyl ester and 4-amino-4-deoxy-N10-methylpteroic acid.The positional isomers of AMT were weak DHFR inhibitors and showed very little growth-inhibitory activity against L1210 murine leukemia cells or the MTX-resistant L1210/R81 mutant line in culture.The MTX and AMT analogues with the CH2CH2COOH moiety replaced by a CH2CH=CHCOOH side chain showed anti-DHFR activity similar to that of the previously described saturated compound N-(4-amino-4-deoxy-N10-methylpteroyl)-L-2-aminoadipic acid, but were less potent than the parent drugs.The MTX analogue with the CH2CH2COOH side chain displaced from C to N was weakly bound to DHFR, confirming the importance of an intact CONH moiety, and showed greatly diminished cell growth inhibitory potency relative to MTX.None of the compounds was a substrate for folylpolyglutamate synthetase (FPGS) from mouse liver.Furthermore, inhibition of folic acid polyglutamylation in vitro at equimolar 500 μM concentrations of drug and substrate was negligible.The structural changes embodied in these five novel compounds are therefore too great for binding to the FPGS active site.
