Method of inhibiting amyloid protein aggregation and imaging amyloid deposits
申请人:——
公开号:US20040220235A1
公开(公告)日:2004-11-04
The present invention provides a method of treating Alzheimer's disease using a compound of Formula I
1
Also provided is a method of inhibiting the aggregation of amyloid proteins using a compound of Formula I and a method of imaging amyloid deposits, as well as new compounds of Formula I.
Sixteen substituted styryl 3,4-dichlorophenyl ketones [(2E)-1-(3,4-dichlorophenyl)-3-phenyl-2-propen-1-ones] were synthesized using eco-friendly benign stereoselective crossed-aldol reaction. They are characterized by their analytical, infrared, NMR and mass spectral data. The insectantifeedant activities of these chalcones were evaluated using Caster semilooper and Achoea janata L.
Background: Chalcones constitute one of the major classes of natural products belonging to the flavonoid family, and they have been reported as having a range of important therapeutic activities, including some chalcones are effective as antimicrobial agents. Currently, the search for new structures with antimicrobial activity has been intensified due to the emergence of many strains resistant to antibiotics currently used to treat infectious diseases.Method: 3 chalcone series (amino, acetamido and nitrochalcones) were prepared (23 compounds) and evaluated for their antimicrobial and cytotoxic potential. The effects of substituents on their respective activities also was evaluated.Results & Conclusion: The results showed that 4 aminochalcones (2, 4, 8, 9), 3 acetoamidochalcones (10, 14, 18) and 3 nitrochalcones (20, 22, 23), exhibited antifungal effects. The aminochalcones were more toxic than the acetamidochalcones, while the nitrochalcones did not present any toxic effect. It was verified that there seems to be structure-activity correlation in some electron-donating and withdrawing substituents groups in rings A and B of the synthetized chalcone analogues and its antifungal and cytotoxic activity.
Jaiswal, Neelam; Jaiswal, R. K.; Barthwal, J. P., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 3, p. 252 - 253
作者:Jaiswal, Neelam、Jaiswal, R. K.、Barthwal, J. P.、Kishor, K.
DOI:——
日期:——
EL-HASHASH M. A.; MOHAMED M. M.; NAGY A., INDIAN J. CHEM., 1979, B 16, NO 11, 984-988,