Synthesis, Biological Evaluation, and Structure–Activity Relationships of Novel Substituted N-Phenyl Ureidobenzenesulfonate Derivatives Blocking Cell Cycle Progression in S-Phase and Inducing DNA Double-Strand Breaks
摘要:
Twenty-eight new substituted N-phenyl ureido-benzenesulfonate (PUB-SO) and 18 N-phenylureidobenzene-sulfonamide (PUB-SA) derivatives were prepared. Several PUB-SOs exhibited antiproliferative activity at the micromolar level against the HT-29, M21, and MCF-7 cell lines and blocked cell cycle progression in S-phase similarly to cisplatin. In addition, PUB-SOs induced histone H2AX (gamma H2AX) phosphorylation, indicating that these molecules induce DNA double-strand breaks. In contrast, PUB-SAs were less active than PUB-SOs and did not block cell cycle progression in S-phase. Finally, PUB-SOs 4 and 46 exhibited potent antitumor activity in HT-1080 fibrosarcoma cells grafted onto chick chorioallantoic membranes, which was similar to cisplatin and combretastatin A-4 and without significant toxicity toward chick embryos. These new compounds are members of a promising new class of anticancer agents.
Synthesis of sulfonamides and sulfonic esters via reaction of amines and phenols with thiols using H2O2–POCl3 system
作者:Kiumars Bahrami、Mohammad M. Khodaei、Jamshid Abbasi
DOI:10.1016/j.tet.2012.04.040
日期:2012.6
oxychloride efficiently promoted the synthesis of sulfonamides and sulfonicesters from thiols with hydrogen peroxide in the presence of Amberlite IRA-400 (OH−). This method has been applied to a variety of substrates including nucleophilic and sterically hindered amines, and also phenols with excellent yields of sulfonamides and sulfonicesters. In most cases these reactions are highly selective, simple,
One-pot Tandem Reactions for Direct Conversion of Thiols and Disulfides to Sulfonic Esters, Alcohols to Bis(indolyl)methanes and Synthesis of Pyrroles Catalyzed by N-Chloro Reagents
convenient synthesis of sulfonic esters from thiols and disulfides has been described. In situ preparation of sulfonyl chlorides from thiols is accomplished by oxidation with Chloramin-T, tetra-butylammonium chloride (t-Bu4NCl) and water. The sulfonyl chlorides are then further allowed to react with phenol derivatives in the same reaction vessel. Also, a facile synthesis of bis(indolyl)methanes from alcohols
[EN] SUBSTITUTED 2-IMIDAZOLIDONES AND ANALOGS<br/>[FR] 2-IMIDAZOLIDONES SUBSTITUES ET ANALOGUES
申请人:UNIV LAVAL
公开号:WO2011100840A1
公开(公告)日:2011-08-25
Compounds of formula (I): wherein R1, R2, R3, R4, R7, R6, R7, R8, R9, A, X and Y as defined herein are provided as useful for the treatment of cancer or for the manufacture of anti-cancer agents.
[EN] ALKYLUREA DERIVATIVES ACTIVE AGAINST CANCER CELLS<br/>[FR] DÉRIVÉS D'ALKYLURÉE ACTIFS CONTRE LES CELLULES CANCÉREUSES
申请人:UNIV LAVAL
公开号:WO2012142698A1
公开(公告)日:2012-10-26
Compounds of formula (I) : wherein A, m, n, R1, X, Y, R2, R3, R4, R5 and R6, as defined herein are provided as useful for the treatment of cancer or for the manufacture of anti-cancer agents.