Synthesis of new biologically active isothiazolo[4,5-b]carbazole-type tetracyclic derivatives via an indole-2,3-quinodimethane approach
摘要:
A number of isothiazolo[4,5-b]carbazole derivatives were prepared via a Diels Alder approach involving thermally induced indole-2,3-quinodimethane intermediates. Preliminary biological tests revealed a CSK-3 beta kinase inhibitor (29) and some free NH group containing compounds (17d, 19c, 29) displayed selective human carbonic anhydrase I inhibitory activities. (C) 2014 Elsevier Ltd. All rights reserved.
Synthesis and resolution of a C2-symmetrical indolo-2,3-quinodimethane dimer
摘要:
Thermolysis of ethyl 3-dimethylaminomethyl-2-indolylacetate generated an indolo-2,3-quinodimethane as evidenced by its dimerization to a first '4+2' dimer, which rearranged at a higher temperature to a cyclooctadienic diester. Resolution of this last diester in the form of the amides derived from (-)-alpha-methyl-benzylamine proved it to be C-2-symmetrical. (C) 1999 Elsevier Science Ltd. All rights reserved.
The gramine route to the Diels-Alder adducts of indolo-2,3-quinodimethanes
作者:Khalid Diker、Michèle Döéde Maindreville、Daniel Royer、Fabien Le Provost、Jean Lévy
DOI:10.1016/s0040-4039(99)01349-0
日期:1999.10
Indolo-2,3-quinodimethanes were smoothly generated by thermal fragmentation of 2-substituted 3-aminomethylindoles, and engaged in Diers-Alder reactions yielding 1,2,3,4-tetrahydrocarbazoles with a large array of possible substituents at either position. An intramolecular variant of the procedure generated a tetracyclic (unnatural) indolomonoterpene with complete control of three stereocenters. (C) 1999 Elsevier Science Ltd. All rights reserved.
Synthesis and resolution of a C2-symmetrical indolo-2,3-quinodimethane dimer
作者:Khalid Diker、Michèle Döé de Maindreville、Jean Lévy
DOI:10.1016/s0040-4039(99)01348-9
日期:1999.10
Thermolysis of ethyl 3-dimethylaminomethyl-2-indolylacetate generated an indolo-2,3-quinodimethane as evidenced by its dimerization to a first '4+2' dimer, which rearranged at a higher temperature to a cyclooctadienic diester. Resolution of this last diester in the form of the amides derived from (-)-alpha-methyl-benzylamine proved it to be C-2-symmetrical. (C) 1999 Elsevier Science Ltd. All rights reserved.
Synthesis of new biologically active isothiazolo[4,5-b]carbazole-type tetracyclic derivatives via an indole-2,3-quinodimethane approach
作者:Raimundo F. Miambo、Marie Laronze-Cochard、Ata-Martin Lawson、Régis Guillot、Brigitte Baldeyrou、Amélie Lansiaux、Claudiu T. Supuran、Janos Sapi
DOI:10.1016/j.tet.2014.09.015
日期:2014.11
A number of isothiazolo[4,5-b]carbazole derivatives were prepared via a Diels Alder approach involving thermally induced indole-2,3-quinodimethane intermediates. Preliminary biological tests revealed a CSK-3 beta kinase inhibitor (29) and some free NH group containing compounds (17d, 19c, 29) displayed selective human carbonic anhydrase I inhibitory activities. (C) 2014 Elsevier Ltd. All rights reserved.