82050-00-8Relevant academic research and scientific papers
Stereospecific Ring Opening and Cycloisomerization of Aziridines with Propargylamines: Synthesis of Functionalized Piperazines and Tetrahydropyrazines
Das, Bijay Ketan,Pradhan, Sourav,Punniyamurthy, Tharmalingam
supporting information, p. 4444 - 4448 (2018/08/07)
Stereospecific Cu-catalyzed nucleophilic ring opening of N-sulfonylaziridines with propargylamines and subsequent hydroamination afford piperazines, which leads to double-bond isomerization to furnish tetrahydropyrazines. Optically active aziridines can be cross-coupled with high enantiomeric purities (>98% ee).
2-[N-Alkyl(R-phenyl)-aminomethyl]-3-phenyl-7-trifluoromethylquinoxalines as anticancer agents inhibitors of folate enzymes
Piras, Sandra,Carta, Antonio,Briguglio, Irene,Corona, Paola,Paglietti, Giuseppe,Luciani, Rosaria,Costi, Maria Paola,Ferrari, Stefania
, p. 169 - 183 (2014/03/21)
Based on our previous results on the ascertained potent growth inhibition effect against a panel of 60 human tumors cell lines at National Cancer Institute of Bethesda (NCI), we have synthesized a novel series of thirty-one 2-[N-methyl(R-phenyl)-aminomethyl]-3-phenyl-7-trifluoromethylquinoxalines (1-31). The lead compound 1 was previously reported to be endowed with significant inhibition against hDHFR enzyme, with a Ki of 0.2 μM. Docking studies were performed on compound 1 and here reported to predict its binding conformation to human dihydrofolate reductase (hDHFR). All compounds (1-31) were assayed versus hDHFR and human thymidylate synthase (hTS). From the screening emerged that all compounds inhibited hDHFR with Ki values included between 0.2 and 11 μM, while only a few (6, 21, 24, 27, 29) showed great activity and selectivity towards hTS. Evaluation of the anticancer activity was performed by NCI, first against the three cell line panel, and only the most active compounds (17, 21, 24, 26, 27) were evaluated on a panel of 60 human tumor cell lines. Compound 21 was the most active against all cell lines with log GI50 equal to -5.49 and log LC50 equal to -4.19 and maintained significant percent of growth inhibition on seven cancer cell lines at the concentration of 1 μM. Compound 17 was the second most active and moreover showed interesting selectivity against some cell lines (Lung cancer: A549/ATCC, Melanoma: UACC-257, Ovarian Cancer: ovcar-8 and Renal cancer: RXF 393) at all concentration examined (100-0.01 μM).
Potent inhibition of thymidylate synthase by two series of nonclassical quinazolines
McNamara,Berman,Fry,Werbel
, p. 2045 - 2051 (2007/10/02)
The synthesis and biological activity of two series of nonclassical thymidylate synthase (TS) inhibitors are described. The first is a series of 10-propargyl-5.8-dideazafolic acid derivatives (10a-j) and the second is a series of the analogous 2-desamino
Substituted quinazolinones as anticancer agents
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, (2008/06/13)
Novel 6-substituted-4(3H)-quinazolinones are described as well as methods for the preparation and pharmaceutical composition of same, which inhabit the enzyme thymidylate synthase (TS) and are thus useful as anticancer agents.
