Elagamey, Abdel Ghani A.; Sawllim, Salah Z.; El-Taweel, Fathy M.A., Collection of Czechoslovak Chemical Communications, 1988, vol. 53, # 7, p. 1534 - 1538
作者:Elagamey, Abdel Ghani A.、Sawllim, Salah Z.、El-Taweel, Fathy M.A.、Elnagdi, Mohamed H.
DOI:——
日期:——
Optimisation of estrogen receptor subtype-selectivity of a 4-Aryl-4H-chromene scaffold previously identified by virtual screening
作者:Miriam Carr、Andrew J.S. Knox、Daniel K. Nevin、Niamh O'Boyle、Shu Wang、Billy Egan、Thomas McCabe、Brendan Twamley、Daniela M. Zisterer、David G. Lloyd、Mary J. Meegan
DOI:10.1016/j.bmc.2019.115261
日期:2020.3
4-Aryl-4H-Chromene derivatives have been previously shown to exhibit anti-proliferative, apoptotic and anti-angiogenic activity in a variety of tumor models in vitro and in vivo generally via activation of caspases through inhibition of tubulin polymerisation. We have previously identified by Virtual Screening (VS) a 4-aryl-4H-chromene scaffold, of which two examples were shown to bind Estrogen Receptor alpha and beta with low nanomolar affinity and <20-fold selectivity for alpha over beta and low micromolar anti-proliferative activity in the MCF-7 cell line. Thus, using the 4-aryl-4H-chromene scaffold as a starting point, a series of compounds with a range of basic arylethers at C-4 and modifications at the C3-ester substituent of the benzopyran ring were synthesised, producing some potent ER antagonists in the MCF-7 cell line which were highly selective for ERa (compound 35; 350-fold selectivity) or ER beta (compound 42; 170-fold selectivity).
Synthesis, characterization, and antibacterial evaluation of new alkyl 2-amino-4-aryl-4H-chromene-3-carboxylates
A series of alkyl 2-amino-4-aryl-4H-chromene-3-carboxylates was synthesized by an efficient, solvent-free one-pot three-component cyclocondensation of resorcinol, aromatic aldehydes, and ethyl or methyl cyanoacetate using sodium carbonate as catalyst. The present methodology offers several advantages, such as a simple procedure with ease of handling, short reaction time, high yields, and the absence of any volatile and hazardous organic solvents. The products were characterized on the basis of IR, H-1 NMR, and C-13 NMR spectral and microanalytical data and evaluated for their antibacterial activity against Gram-positive bacteria (Staphylococcus epidermidis and Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli) using paper disc diffusion technique.
Radwan, Shaban M.; Bakhite, Etify A.; El-Dean, Adel M. Kamal, Phosphorus, Sulfur and Silicon and the Related Elements, 1995, vol. 101, # 1-4, p. 207 - 212
作者:Radwan, Shaban M.、Bakhite, Etify A.、El-Dean, Adel M. Kamal
DOI:——
日期:——
Klokol, G.V.; Sharanina, L.G.; Nesterov, V.N., Journal of Organic Chemistry USSR (English Translation), 1987, vol. 23, p. 369 - 377