Novel Synthesis of 6,12-dihydroindolo[3,2-<i>b</i>]carbazoles catalysed by <i>p</i>-toluenesulfonic acid
作者:Can Jin、Bo Zhang、Chuanming Yu、Weike Su
DOI:10.3184/030823409x424858
日期:2009.3
An efficient and straightforward procedure for the synthesis of 6,12-dihydroindolo[3,2-b]carbazoles has been achieved through the one-pot reaction of indole with aromatic aldehydes in the presence of p-toluenesulfonic acid (pTSA) as the catalyst.
Synthesis, cytostatic evaluation and structure activity relationships of novel bis-indolylmethanes and their corresponding tetrahydroindolocarbazoles
作者:Mardia T. El Sayed、Khadiga M. Ahmed、Kazem Mahmoud、Andreas Hilgeroth
DOI:10.1016/j.ejmech.2014.12.008
日期:2015.1
BIMs (bis-indolylmethanes) (1(a-n)) were synthesized using glacial acetic acid as a protic acid for promotion of the condensation reaction of indoles with aldehydes in high yields (86-98 %). Corresponding tetrahydroindolo[2,3-b]carbazoles (2(a-m)) were synthesized via condensation of BIMs with aldehydes. Ten synthesized compounds have been submitted to the national cancer institute in the USA where all the submitted samples have been selected for one dose screening. As a result of the one dose screening of BIMs (1(e,f,h,i,n)) and of the indolocarbazoles (2(e,f,h,i,j)) the average highest cytostatic effects was recorded here for the BIM 1(h) and the indolocarbazole (2e) that showed the lowest mean values of "47.39%" and of "21.63%" respectively. Both compounds (1(h) and 2(e)) were further tested in five dose screening with the tested substance (1(h)) being significantly more sensitive for several cancers cell line as corresponding to their GI(50) values. Furthermore, the basically substituted derivative 2(e) showed the highest antipoliferative activity in a nanomolar scale towards the three selected cancers cell lines Non small lung cell NCI-H460 with GI(50) "616 nM", Ovarian Cancer cell line OVCAR-4 with GI(50) "562 nM" and Breast Cancer cell line MCF7 with GI(50) "930 nM". (C) 2014 Elsevier Masson SAS. All rights reserved.
Passerini; Bonciani, Gazzetta Chimica Italiana, 1933, vol. 63, p. 142
作者:Passerini、Bonciani
DOI:——
日期:——
v Dobeneck; Prietzel, Hoppe-Seyler's Zeitschrift fur Physiologische Chemie, 1955, vol. 299, p. 214,224