Palladium catalyzed cyclocarbonylation of 3,3-diarylallyl acetates
摘要:
Palladium-catalyzed cyclocarbonylation of 3,3-diarylallyl acetates afforded 4-aryl-substituted 1-naphthyl acetates where the cyclization occurred selectively on the more electron-rich ring.
A simple, efficient and metal-free route for the synthesis of dissymmetric ketones through Suzuki type cross-coupling reaction has been established. This strategy signifies an attractive, cost-effective and operationally convenient tool for the synthesis of a wide range of dissymmetric ketones. Although conventional routes for the synthesis of ketones have been widely used, the potential challenge
Discovery of trypanocidal thiosemicarbazone inhibitors of rhodesain and TbcatB
作者:Jeremy P. Mallari、Anang Shelat、Aaron Kosinski、Conor R. Caffrey、Michele Connelly、Fangyi Zhu、James H. McKerrow、R. Kiplin Guy
DOI:10.1016/j.bmcl.2008.03.083
日期:2008.5
Human African trypanosomiasis ( HAT) is caused by the protozoan parasite Trypanosoma brucei. The cysteine proteases of T. brucei have been shown to be crucial for parasite replication and represent an attractive point for therapeutic intervention. Herein we describe the synthesis of a series of thiosemicarbazones and their activity against the trypanosomal cathepsins TbcatB and rhodesain, as well as human cathepsins L and B. The activity of these compounds was determined against cultured T. brucei, and specificity was assessed with a panel of four mammalian cell lines. (c) 2008 Elsevier Ltd. All rights reserved.
Palladium catalyzed cyclocarbonylation of 3,3-diarylallyl acetates
作者:Masakazu Iwasaki、Youichi Ishii、Masanobu Hidai
DOI:10.1016/0022-328x(91)80143-8
日期:1991.9
Palladium-catalyzed cyclocarbonylation of 3,3-diarylallyl acetates afforded 4-aryl-substituted 1-naphthyl acetates where the cyclization occurred selectively on the more electron-rich ring.
Slootmaekers,P.J.; Verbeerst,R., Bulletin des Societes Chimiques Belges, 1968, vol. 77, p. 273 - 285