New Arylthioindoles: Potent Inhibitors of Tubulin Polymerization. 2. Structure−Activity Relationships and Molecular Modeling Studies
摘要:
Arylthioindoles (ATIs) that possess a 3-methoxyphenylthio or a 3,5-dimethoxyphenylthio moiety at position 2 of the indole ring were effective tubulin assembly inhibitors, but weak inhibitors of MCF-7 cell growth. ATIs bearing a 3-(3,4,5-trimethoxyphenyl)thio moiety were potent tubulin polymerization inhibitors, with IC(50)s in the 2.0 (35) to 4.5 (37) mu M range. They also inhibited MCF-7 cell growth at nanomolar concentrations. The 3,4,5-trimethoxy substituted ATIs showed potencies comparable to those of the reference compounds colchicine and combretastatin A-4 in both tubulin assembly and cell growth inhibition assays. Dynamics simulation studies correlate well with the observed experimental data. Furthermore, from careful analysis of the biological and in silico data, we can now hypothesize a basic pharmacophore for this class of compounds.
Iron-Catalyzed Azidoalkylthiation of Alkenes with Trimethylsilyl Azide and 1-(Alkylthio)pyrrolidine-2,5-diones
作者:Jipan Yu、Min Jiang、Zhixuan Song、Tiancheng He、Haijun Yang、Hua Fu
DOI:10.1002/adsc.201600133
日期:2016.9.1
has been developed at room temperature, and the corresponding products containing ortho‐sited sulfide and azide units were obtained in moderate to good yields with good tolerance of functional groups. The protocol uses readily available 1‐(alkylthio)pyrrolidine‐2,5‐diones and trimethylsilylazide as the alkylthiation and azidation reagents, respectively, inexpensive and environmentally friendly iron
作者:Feng Zhu、Eric Miller、Shuo-qing Zhang、Duk Yi、Sloane O’Neill、Xin Hong、Maciej A. Walczak
DOI:10.1021/jacs.8b11211
日期:2018.12.26
We report a stereoretentive cross-coupling reaction of configurationally stable nucleophiles with disulfide and N-sulfenylsuccinimide donors promoted by Cu(I). We demonstrate the utility of this method in the synthesis of thioglycosides derived from simple alkyl and aryl thiols, thioglycosides, and in the glycodiversification of cysteine residues in peptides. These reactions operate well with carbohydrate
Acid-Mediated Oxychalcogenation of <i>o</i>-Vinylanilides with <i>N</i>-(Arylthio/arylseleno)succinimides
作者:Manthena Chaitanya、Pazhamalai Anbarasan
DOI:10.1021/acs.orglett.8b00065
日期:2018.2.16
An efficient acid-mediated oxythiolation of o-vinylanilides has been accomplished, employing N-(arylthio)succinimide as an electrophilic arylthiolating reagent for the synthesis of various arylthio tethered benzoxazine derivatives in good to excellent yield. The important features of this method include wide functional group tolerance, quick reaction time, absence of metal or additive, and excellent
A general and efficient Cp*CoIII-catalyzed C2-thiolation and C2,C3-dithiolation of indole derivatives has been achieved employing N-(aryl/alkylthio)succinimide as a thiolating reagent.