The antiretroviral activity of azulene derivatives was detected for the first time. A series of eighteen diversely substituted azulenes was synthesized and tested in vitro using HIV-1 based virus-like particles (VLPs) and infectious HIV-1 virus in U2OS and TZM-bl cell lines. Among the compounds tested, the 2-hydroxyazulenes demonstrated the most significant activity by inhibiting HIV-1 replication
First synthesis of 1-(indol-2-yl)azulenes by the Vilsmeier–Haack type arylation with triflic anhydride as an activating reagent
作者:Taku Shoji、Yuta Inoue、Shunji Ito
DOI:10.1016/j.tetlet.2012.01.044
日期:2012.3
Azulene derivatives reacted with 2-indolinones in the presence of triflic anhydride (Tf2O) to afford 1-(indol-2-yl)azulenes in good yields. In the cases of the reaction of 6-tert-butyl-1-(methylthio)azulene (11) and 1-(1,4-dihydropyridin-4-yl)azulene 14, 1,1′-biazulene derivative 24 and 1-(indol-2-yl)azulene (2) were obtained under the similar reaction conditions, respectively, instead of the presumed
Ring Expansion-Annulation Strategy for the Synthesis of Substituted Azulenes and Oligoazulenes. 2. Synthesis of Azulenyl Halides, Sulfonates, and Azulenylmetal Compounds and Their Application in Transition-Metal-Mediated Coupling Reactions
作者:Aimee L. Crombie、John L. Kane、Kevin M. Shea、Rick L. Danheiser
DOI:10.1021/jo048698c
日期:2004.12.1
Stille, and Suzuki coupling reactions. Reaction of the azulenyl triflate 84 with pinacolborane provides access to the azulenylboronate 91, which participates in Suzuki coupling reactions with alkenyl and aryl iodides. The application of these coupling reactions to the synthesis of biazulenes, terazulene 101, and related oligoazulenes is described, as well as the preparation of the azulenyl amino acid
THE FACILE SYNTHESIS OF 1- AND 2-ALKYLAZULENES BY THE REACTIONS OF 2<i>H</i>-CYCLOHEPTA[<i>b</i>]FURAN-2-ONES WITH ENAMINES OF ALDEHYDES AND ACYCLIC KETONES
作者:Masafumi Yasunami、Alice Chen、P. W. Yang、Kahei Takase
DOI:10.1246/cl.1980.579
日期:1980.5.5
The reactions of 2H-cyclohepta[b]furan-2-one and its 3-cyano derivatives with enamines derived from aldehydes and acyclic ketones were investigated. On the reactions, 1- and 2-alkylazulenes were easily synthesized.
A Ring Expansion−Annulation Strategy for the Synthesis of Substituted Azulenes. Preparation and Suzuki Coupling Reactions of 1-Azulenyl Triflates
作者:John L. Kane、Kevin M. Shea、Aimee L. Crombie、Rick L. Danheiser
DOI:10.1021/ol0156897
日期:2001.4.1
[structure: see text]. A new strategy for the synthesis of substitutedazulenes is reported, based on the reaction of beta'-bromo-alpha-diazo ketones with rhodium carboxylates. The key transformation involves intramolecular addition of a rhodium carbenoid to an arene pi-bond, electrocyclic ring opening, beta-elimination, tautomerization, and trapping to produce 1-hydroxyazulene derivatives. The synthetic