Synthesis and structure–activity relationships of 1,2,4-triazoles as a novel class of potent tubulin polymerization inhibitors
作者:Xiaohu Ouyang、Xiaoling Chen、Evgueni L. Piatnitski、Alexander S. Kiselyov、Hai-Ying He、Yunyu Mao、Vatee Pattaropong、Yang Yu、Ki H. Kim、John Kincaid、Leon Smith、Wai C. Wong、Sui Ping Lee、Daniel L. Milligan、Asra Malikzay、James Fleming、Jason Gerlak、Dhanvanthri Deevi、Jacqueline F. Doody、Hui-Hsien Chiang、Sheetal N. Patel、Ying Wang、Robin L. Rolser、Paul Kussie、Marc Labelle、M. Carolina Tuma
DOI:10.1016/j.bmcl.2005.08.056
日期:2005.12
triazole-containing chemical series was shown to inhibit tubulin polymerization and cause cell cycle arrest in A431 cancer cells with EC(50) values in the single digit nanomolar range. Binding experiments demonstrated that representative active compounds of this class compete with colchicine for its binding site on tubulin. The syntheses and structure-activityrelationship studies for the triazole derivatives
A Versatile Synthesis of Novel<i>N</i>,<i>N</i>,<i>N</i>″-Trisubstituted Guanidines
作者:C. R. Rasmussen、F. J. Villani, Jr.、B. E. Reynolds、J. N. Plampin、A. R. Hood、L. R. Hecker、S. O. Nortey、A. Hanslin、M. J. Costanzo、R. M. Howse, Jr.、A. J. Molinari
DOI:10.1055/s-1988-27606
日期:——
N,N,N″-Trisubstituted guanidines (most of them N″-aryl-N-azacycloalkanecarboximidamides) are prepared in generally good yields by S-methylation of monosubstituted thioureas with methyl iodide in methanol or acetone and reaction of the resultant methyl carbamimidothioate hydroiodides with secondary amines in boiling tert-butyl alcohol or acetonitrile.
Synthesis, molecular modeling and anti-inflammatory screening of novel fluorinated quinoline incorporated benzimidazole derivatives using the Pfitzinger reaction
作者:Said A. El-Feky、Hamdy Kh. Thabet、Mustafa T. Ubeid
DOI:10.1016/j.jfluchem.2014.02.012
日期:2014.5
Several new fluorinated quinolinederivatives were synthesized and tested for their anti-inflammatory and ulcerogenic effect. A docking study on the COX-2 binding pocket was carried out for the target compounds to rationalize the possible selectivity of them against COX-2 enzyme. The most active compounds (3, 2, 7 and 11) were found to be superior to celecoxib as they were devoid of any ulcerogenic
The pKa's of melamine derivatives bearing a 2-arylguanidinium ion and their binding constants for 6-aza-10-dodecylisoalloxazine (6-azaflavin) were nicely correlated with the Hammett σ of the substituents. However, the rates of the oxidations of N-benzyl-1,4-dihydronicotinamide (BNAH) and dithiothreitol (DTT) by 6-azaflavin were not affected by the substituents of the receptors in CHCl3.
A Convenient Synthesis of Mono-,<i>N</i>,<i>N</i>′-Di-, and Trisubstituted Selenoureas from Methyl Carbamimidothioates (<i>S</i>-Methylpseudothioureas)