Ghosh, Chandra Kanta; Bandyopadhyay, Chandrakanta, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1984, vol. 23, # 11, p. 1048 - 1053
Synthesis, carbonic anhydrase inhibition and cytotoxic activity of novel chromone-based sulfonamide derivatives
摘要:
Four series of sulfonamides incorporating chromone moieties were synthesized and assessed for their cytotoxic activity against MCF-7 and A-549 cell lines, considering the fact that some of these tumors overexpress isoforms of carbonic anhydrase (CA, EC 4.2.1.1) which is inhibited by sulfonamides. Most new sulfonamides showed weak inhibitory activity against the offtarget, cytosolic isoforms hCA I, II but effectively inhibited the tumor-associated hCA IX and XII. The most active compounds featured a primary SO2NH2 group and were active in the low micromolar range against MCF-7 and A-549 cell lines. Compound 4a showed IC50 of 0.72 and 0.50 mu M against MCF-7 and A-549 cell lines, respectively, and was further evaluated for its proapoptotic activity which proved enhanced in both tumor types. (C) 2015 Elsevier Masson SAS. All rights reserved.
Aminolysis and hydrolysis of chromonyl oxazolones and some condensation reactions of 2-methylchromone leading to novel chromones
作者:Winton D. Jones
DOI:10.1039/p19810000344
日期:——
The aminolysis of 4-[(4-oxo-4H-1-benzopyran-3-yl)methylene]-2-phenyl-1,3-oxazol-5(4H)-one with diethylamine gave N-[1-(diethylamino)-1-oxo-3-(4-oxo-4H-1-benzopyran-3-yl)prop-2-en-2-yl] benzamide. The hydrolysis of 2-methyl-4-[(4-oxo-4H-1-benzopyran-3-yl)methylene]-1,3-oxazol-5(4H)-one gave the α-keto-acid, which could be converted into amino-acid derivatives. Condensation of 2-methylchromone with diethyl