Friedel-Crafts 3-(2-Bromobenzoylation) of Indoles and Intramolecular Direct Arylation: An Efficient Route to Indenoindolones
作者:Sankar Guchhait、Maneesh Kashyap
DOI:10.1055/s-0031-1289663
日期:2012.2
Friedel-Crafts reaction of 2-bromobenzoyl chlorides with indoles to give 3-(2-bromobenzoyl)indoles and their palladium-catalyzed intramolecular direct arylation to give indenoindolones, has been developed. 3-(2-Bromobenzoyl)indoles were crucial intermediates; the method was successful with N-unprotected or N-protected indoles. This approach affords a convenient preparation of diverse substituted and functionalized
Scaffold hybridization in generation of indenoindolones as anticancer agents that induce apoptosis with cell cycle arrest at G2/M phase
作者:Maneesh Kashyap、Dipon Das、Ranjan Preet、Purusottam Mohapatra、Shakti Ranjan Satapathy、Sumit Siddharth、Chanakya N. Kundu、Sankar K. Guchhait
DOI:10.1016/j.bmcl.2012.02.007
日期:2012.4
Scaffold hybridization of several natural and synthetic anticancer leads led to the consideration of indenoindolones as potential novel anticancer agents. A series of these compounds were prepared by a diversity-feasible synthetic method. They were found to possess anticancer activities with higher potency compared to etoposide and 5-fluorouracil in kidney cancer cells (HEK 293) and low toxicity to corresponding normal cells (Vero). They exerted apoptotic effect with blocking of cell cycle at G2/M phase. (C) 2012 Elsevier Ltd. All rights reserved.
Ananthakrishnanadar, P.; Varghesedharumaraj, G., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 5, p. 506 - 507
作者:Ananthakrishnanadar, P.、Varghesedharumaraj, G.
DOI:——
日期:——
Total Synthesis of (+)-Xestoquinone Using an Asymmetric Palladium-Catalyzed Polyene Cyclization
作者:Shawn P. Maddaford、Neil G. Andersen、Walter A. Cristofoli、Brian A. Keay
DOI:10.1021/ja960807k
日期:1996.1.1
The first total asymmetric synthesis of (+)-xestoquinone (1) has been accomplished in 68% ee by a palladium(0)-catalyzed polyenecyclization of naphthyl triflate 44 using (S)-(+)-BINAP as the chiral ligand. Attempts at an asymmetric polyenecyclization using the corresponding naphthyl bromide 41 gave poor enantioselectivities even in the presence of silver salts, thus exemplifying the effect of the