Synthesis of imidazoles as novel emivirine and S-DABO analogues
作者:Yasser M. Loksha、Per T. Jørgensen、Erik B. Pedersen、Mahmoud A. El-Badawi、Ahmed A. El-Barbary、Claus Nielsen
DOI:10.1002/jhet.5570390222
日期:2002.3
were alkylated with ethoxymethyl chloride to give the alkylated imidazoles 5a-d which were considered analogues of Emivirine with deletion of carbonyl group at the 4-position. Alkylation of 7a-d afforded the corresponding S-alkylated derivatives 8a-p which in a similar way were considered analogues of S-DABO. However all the imidazole derivatives were devoid of activity against HIV.
Design and synthesis of 2-Substituted-4-benzyl-5-methylimidazoles as new potential Anti-breast cancer agents to inhibit oncogenic STAT3 functions
作者:Botros Y. Beshay、Amira A. Abdellatef、Yasser M. Loksha、Salwa M. Fahmy、Nargues S. Habib、Alaa El-Din A. Bekhit、Paris E. Georghiou、Yoshihiro Hayakawa、Adnan A. Bekhit
DOI:10.1016/j.bioorg.2021.105033
日期:2021.8
imidazole-bearing compounds showed greater STAT3 inhibition than their leadcompounds VS1 and the oxadiazole derivative MD77. Within all tested compounds, ten derivatives effectively inhibited the growth of the two tested breast cancer cells with IC50 values ranging from 6.66 to 26.02 µM. In addition, the most potent derivatives 2a and 2d inhibited the oncogenic function of STAT3 as seen in the inhibition