The o-Amino-Trifluoromethyl Functionality as a Novel Synthon for 4-Fluoroquinolines
摘要:
2-Substituted 4-fluoroquinolines 3 are obtained by the reaction of 2-(trifluoromethyl)aniline (1) with lithium enolates 2 derived from methylketones. A similar reaction of 1 with lithium enolate of acetaldehyde produces 4-fluoroquinoline. 1-Fluoro-3-phenyl-4,6-phenanthroline (18) is obtained by treatment of Lithium enolate of acetophenone with 4-(trifluoromethyl)quinolin-3-amine (17). By contrast, (Z)-N-[2-(1-fluoroalkenyl)phenyl]carboxamides 10 and 12 are the products of the reaction of 1 with the respective enolate ions derived from 3-pentanone and isobutyl phenyl ketone. A unified mechanism for the formation of quinolines and carboxamides is proposed.
A facile synthesis of 2-substituted N-tert-butoxycarbonyl-N-methyl-1,3-propanediamines, key intermediates for the preparation of triplex DNA-specific intercalators
作者:Lucjan Strekowski、Yuri Gulevich、Koen Van Aken、David W Wilson、Keith R Fox
DOI:10.1016/0040-4039(94)02228-4
日期:1995.1
N-substituted 2-(2-naphthyl)quinolin-4-amines 4b,c are superior to other DNA intercalators reported to date in the ability to selectively stabilize triple helix DNA in the presence of duplex DNA. A facilesynthesis of the title diamines 1 required for the preparation of 4 is based on a novel addition reaction of metallated tert-butyl N,N-dimethylcarbamate [Boc-N(Me)CH2M; 7, MLi; 8, MMgBr; 9, MCu(CN)ZnCl]
N-取代的2-(2-萘基)喹啉-4-胺4b,c在双链体DNA存在下能够选择性稳定三螺旋DNA方面优于迄今为止报道的其他DNA嵌入剂。制备4所需的标题二胺1的简便合成是基于金属化的N,N-二甲基氨基甲酸叔丁酯[Boc-N(Me)CH 2 M; 7,MLi;8,MMgBr;9,M = Cu(CN)ZnCl]与硝基烯烃。
Strekowski, Lucjan; Parker, Alesia N; Hojjat, Maryam, Acta poloniae pharmaceutica, 2004, vol. 61 Suppl, p. 70 - 72
作者:Strekowski, Lucjan、Parker, Alesia N、Hojjat, Maryam、Say, Martial、Zegrocka-Stendel, Oliwia、Patterson, Steven E、Tanious, Farial A、Wilson, W David
DOI:——
日期:——
Strekowski Lucjan, Kiselyov Alexander S., Hojjat Maryam, J. Org. Chem, 59 (1994) N 20, S 5886-5890
作者:Strekowski Lucjan, Kiselyov Alexander S., Hojjat Maryam