Design of new anticancer drugs. II. Easy arynic access to benzocyclobutacarbazoles, a new family of antitumor agents
摘要:
Tetrahydrobenzocyclobutacarbazoles with antitumoral properties were obtained either by arynic condensation of aryl halides with 3-carbazolone enolates or arynic cyclisation of halogenated arylimine enolates of 2-biphenylenones in the presence of the complex base NaNH2-tBuONa. (C) 1998 Elsevier Science Ltd. All rights reserved.
Several benzocyclobutacarbazol derivatives were synthesized and evaluated for their potential cytotoxic properties. A number of these compounds exhibited significant antiproliferativeactivity with concomitant interaction with the cell cycle and represent a newclass of potential anticancer agents.
Tetrahydrobenzocyclobutacarbazoles with antitumoral properties were obtained either by arynic condensation of aryl halides with 3-carbazolone enolates or arynic cyclisation of halogenated arylimine enolates of 2-biphenylenones in the presence of the complex base NaNH2-tBuONa. (C) 1998 Elsevier Science Ltd. All rights reserved.
Novel photoreaction of N-alkyl(p-methoxyphenyl)arylamines assisted by protic acids
作者:Jinn-Hsuan Ho、Tong-Ing Ho
DOI:10.1039/b108385f
日期:2002.1.30
A novel photochemical transformation from N-alkyl(p-methoxyphenyl)arylamines (1a–1f) to 1,2,4-trihydro(4aH)-carbazol-3-ones (2a–2f) is reported with the assistance of protonation at the dihydrocarbazole intermediate followed by sequential formal [1,5]hydrogen, [1,3]hydrogen shifts and proton assisted hydrolysis.